Download JNTUH MBA 1st Semester 2017 July Statistics for Management Question Paper

Question Paper Code: CMB005

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Jawaharlal Nehru Technological University Hyderabad

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M.Tech I Semester End Examinations (Supplementary) - July, 2017

Regulation: .-R16

STATISTICS FOR MANAGEMENT

(Master of Business Administration)

Time: 3 Hours Max Marks: 70

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Answer ONE Question from each Unit

All Questions Carry Equal Marks

All parts of the question must be answered in one place only

UNIT I

1. (a) Explain the origin and development of statistics. [7M]
   

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   (b) Explain the qualities of a statistician. Discuss the significance of statistical investigation. [7M]
2. (a) Examine the various functions of statistics and limitations of statistics. [7M]
   (b) Explain the scope of statistics. Explain the managerial implications of statistics. [7M]

UNIT - II

1. (a) Calculate the median and compute the mean deviation from the median. [7M]
   

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   Table 1
   

   Class	frequency
   0-10	5
   10-20	8
   20-30	12
   30-40	15
   40-50	20
   50-60	14
   60-70	12
   70-80	6

   
   (b) Compute the quartile deviation and its coefficient from the Table 2. [7M]

2. Class	frequency
   0-100	12
   100-200	18
   200-300	35
   300-400	42
   400-500	50
   500-600	45
   600-700	20
   700-800	8

1. (a) Calculate Bowley's coefficient of skewness for the data given in Table 3 [7M]
   

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   Table 3
   

   CI	f
   Below 99	1
   100-109	14
   110-119	66
   120-129	122
   130-139	145
   140-149	121
   150-159	65
   160-169	34
   170-179	12
   180-189	5
   190-199	2
   200 and over	2

   
   (b) The median of the following distribution is known to be 25. Find the missing values in Table 4. [7M]

2. CI	f
   0-10	3
   10-20	X
   20-30	5
   30-40	Y
   40-50	2
   Total	20

UNIT III

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1. (a) Differentiate between classification and tabulation and explain the different types of classification. [7M]
   (b) Represent the data given in Table 5 by means of a histogram. [7M]
   Table 5
   

   Monthly Income (Rs)	No: of workers
   3000-3500	7
   3500-4000	19
   4000-4500	27
   4500-5000	15
   5000-6000	12
   6000-8000	12
   8000-10000	8

2. (a) Explain the various types of one dimensional diagrams. [7M]
   

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   (b) Explain the general rules for constructing diagrams. [7M]

UNIT IV

1. (a) Explain the assumptions, properties and applications of t-test. [7M]
   (b) Calculate the Spearman's rank correlation coefficient between the following 2 series shown in Table 6. [7M]
   Table 6
   

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   Series A	Series B
   57	113
   59	117
   62	126
   63	126
   64	130
   65	129
   55	111
   58	116
   57	112

2. (a) Differentiate between Karl Pearson's correlation co-efficient of Spearman's rank correlation. [7M]
   (b) Perform a two way ANOVA on the data given in Table 7: [7M]
   Table 7
   

   Plots of land	Treatment A	Treatment B	Treatment C	Treatment D
   I	38	40	41	39
   II	45	42	49	36
   III	40	38	42	42

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UNIT - V

1. (a) Explain the characteristics and uses of index numbers. [7M]
   (b) Fit a straight line to the following data given in Table 8 by least squares method. [7M]
   Table 8
   

   X	y
   0	1
   1	1.8
   2	3.3
   3	4.5
   4	6.3

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2. (a) Explain the significance of trend analysis and discuss the methods of estimating trend. [7M]
   (b) For the following data given in Table 9 obtain the 2 regression equations. [7M]
   Table 9
   

   X	Y
   6	9
   2	11
   10	5
   4	8
   8	7

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