Download VTU (Visvesvaraya Technological University) MBA 2nd Semester (Second Semester) 17MBA23-Research Methodology RM Module 3 Important Lecture Notes (MBA Study Material Notes)
Module 3
AKASH S
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Sampling
Module 3
AKASH S
AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
A snowball sample is one in which the researcher collects data on the
few members of the target population he or she can locate, then asks
those individuals to provide information needed to locate other
members of that population whom they know.
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
A snowball sample is one in which the researcher collects data on the
few members of the target population he or she can locate, then asks
those individuals to provide information needed to locate other
members of that population whom they know.
AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
A snowball sample is one in which the researcher collects data on the
few members of the target population he or she can locate, then asks
those individuals to provide information needed to locate other
members of that population whom they know.
AKASH S
Components of total error
0% 100%
True
population
value
50%
Point
estimate
from survey
40%
Total error
Nonsampling
bias
Sampling bias
Sampling
error
Prevalence
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
A snowball sample is one in which the researcher collects data on the
few members of the target population he or she can locate, then asks
those individuals to provide information needed to locate other
members of that population whom they know.
AKASH S
Components of total error
0% 100%
True
population
value
50%
Point
estimate
from survey
40%
Total error
Nonsampling
bias
Sampling bias
Sampling
error
Prevalence
AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
A snowball sample is one in which the researcher collects data on the
few members of the target population he or she can locate, then asks
those individuals to provide information needed to locate other
members of that population whom they know.
AKASH S
Components of total error
0% 100%
True
population
value
50%
Point
estimate
from survey
40%
Total error
Nonsampling
bias
Sampling bias
Sampling
error
Prevalence
AKASH S
AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
A snowball sample is one in which the researcher collects data on the
few members of the target population he or she can locate, then asks
those individuals to provide information needed to locate other
members of that population whom they know.
AKASH S
Components of total error
0% 100%
True
population
value
50%
Point
estimate
from survey
40%
Total error
Nonsampling
bias
Sampling bias
Sampling
error
Prevalence
AKASH S
AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
A snowball sample is one in which the researcher collects data on the
few members of the target population he or she can locate, then asks
those individuals to provide information needed to locate other
members of that population whom they know.
AKASH S
Components of total error
0% 100%
True
population
value
50%
Point
estimate
from survey
40%
Total error
Nonsampling
bias
Sampling bias
Sampling
error
Prevalence
AKASH S
AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
A snowball sample is one in which the researcher collects data on the
few members of the target population he or she can locate, then asks
those individuals to provide information needed to locate other
members of that population whom they know.
AKASH S
Components of total error
0% 100%
True
population
value
50%
Point
estimate
from survey
40%
Total error
Nonsampling
bias
Sampling bias
Sampling
error
Prevalence
AKASH S
AKASH S AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
A snowball sample is one in which the researcher collects data on the
few members of the target population he or she can locate, then asks
those individuals to provide information needed to locate other
members of that population whom they know.
AKASH S
Components of total error
0% 100%
True
population
value
50%
Point
estimate
from survey
40%
Total error
Nonsampling
bias
Sampling bias
Sampling
error
Prevalence
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
A snowball sample is one in which the researcher collects data on the
few members of the target population he or she can locate, then asks
those individuals to provide information needed to locate other
members of that population whom they know.
AKASH S
Components of total error
0% 100%
True
population
value
50%
Point
estimate
from survey
40%
Total error
Nonsampling
bias
Sampling bias
Sampling
error
Prevalence
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
A snowball sample is one in which the researcher collects data on the
few members of the target population he or she can locate, then asks
those individuals to provide information needed to locate other
members of that population whom they know.
AKASH S
Components of total error
0% 100%
True
population
value
50%
Point
estimate
from survey
40%
Total error
Nonsampling
bias
Sampling bias
Sampling
error
Prevalence
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
A snowball sample is one in which the researcher collects data on the
few members of the target population he or she can locate, then asks
those individuals to provide information needed to locate other
members of that population whom they know.
AKASH S
Components of total error
0% 100%
True
population
value
50%
Point
estimate
from survey
40%
Total error
Nonsampling
bias
Sampling bias
Sampling
error
Prevalence
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
A snowball sample is one in which the researcher collects data on the
few members of the target population he or she can locate, then asks
those individuals to provide information needed to locate other
members of that population whom they know.
AKASH S
Components of total error
0% 100%
True
population
value
50%
Point
estimate
from survey
40%
Total error
Nonsampling
bias
Sampling bias
Sampling
error
Prevalence
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
AKASH S
(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
AKASH S
(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
AKASH S
(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
AKASH S AKASH S AKASH S AKASH S
Lottery method
Random number table
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
A snowball sample is one in which the researcher collects data on the
few members of the target population he or she can locate, then asks
those individuals to provide information needed to locate other
members of that population whom they know.
AKASH S
Components of total error
0% 100%
True
population
value
50%
Point
estimate
from survey
40%
Total error
Nonsampling
bias
Sampling bias
Sampling
error
Prevalence
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S AKASH S
AKASH S AKASH S
FirstRanker.com - FirstRanker's Choice
Sampling
Module 3
AKASH S
AKASH S AKASH S AKASH S AKASH S AKASH S
(i) Type of universe/Population
? The first step in developing any sample design is to clearly define the set
of objects, technically called the Universe, to be studied.
? The universe can be finite or infinite.
? In finite universe the number of items is certain, but in case of an infinite
universe the number of items is infinite,
The population of a city, the number of workers in a factory and the like are
examples of finite universes,
whereas the number of stars in the sky, listeners of a specific radio
programme, throwing of a dice etc. are examples of infinite universes. AKASH S
2. Sampling frame
? ?Sampling Frame? is from which sample is to be drawn.
? It contains the names of all items of a universe (in case of finite
universe only).
? If source list is not available, researcher has to prepare it. Such a list
should be comprehensive, correct, reliable and appropriate. It is
extremely important for the source list to be as representative of the
population as possible.
? if you want to learn about scooter owners in a city. The RTO will be
the frame..
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(iii) Sampling unit:
? A decision has to be taken concerning a sampling unit before
selecting sample.
? Sampling unit may be a geographical one such as state, district,
village, etc., or
? A construction unit such as house, flat, etc., or it may be a social unit
such as family, club, school, etc., or it may be an individual.
? The researcher will have to decide one or more of such units that he
has to select for his study.
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(iv) Size of sample:
? This refers to the number of items to be selected from the universe to
constitute a sample. This a major problem before a researcher.
? The size of sample should neither be excessively large, nor too small.
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(vii) Sampling procedure:
? Finally, the researcher must decide the type of sample he will use
? i.e., he must decide about the technique to be used in selecting the
items for the sample.
? Probability
? Non-Probability
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Lottery method
Random number table
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A snowball sample is one in which the researcher collects data on the
few members of the target population he or she can locate, then asks
those individuals to provide information needed to locate other
members of that population whom they know.
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Components of total error
0% 100%
True
population
value
50%
Point
estimate
from survey
40%
Total error
Nonsampling
bias
Sampling bias
Sampling
error
Prevalence
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This post was last modified on 18 February 2020