Download SGBAU BSc 2019 Summer 4th Sem Statistics Question Paper

Download SGBAU (Sant Gadge Baba Amravati university) BSc 2019 Summer (Bachelor of Science) 4th Sem Statistics Previous Question Paper

Time : Three Hours]
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AW?1721
B.Sc. Part-ll Semester?IV Examination
STATISTICS
Note :? ALL questions are compulsory.
Fill in the blanks :
(i) F-statistic was discovered by _
(ii) The arrangement of data in accordance of occurrence of time is _
(iii) Price elasticity of demand is always .
(iv) In large sample test _ statistic is used to test the hypothesis.
Choose the correct altemative :
(i) ihe range of F-variate is _
(a)?ootoac (b) Otooo
(c)?oot00 (d) Otol
(ii) The general tendency of data to increase or decrease over long period 01? time is
(a) Cyclic variation (b) Seasonal variation
(c) Random ?uctuation ((1) Trend
(iii) The sign test is based on the theory of k , distribution.
(a) Normal (b) Geomem'c
(c) Binomial (d) Exponential
(iv) _?* test is used to test equality of population variances.
(a) F (b) t
(C) x2 (d) 2
Answer in one sentence :
(i) What is cyclic variation ?
(ii) What is large sample test ?
(iii) What do you mean by luxuries ?
(iv) What do you mean by index number '2
Obtain the p.d.f. of student's t distribution.
Establish the relationship between t and F distributions.
Explain F-test for testing equality of population variances.
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Obtain p.d.f. of Snedecor's F distribution.
Establish the relationship between F and yf.
Explain t test for single mean.
Explain the concept of bivariate normal distribution.
State the applications of central limit theorem.
Explain large sample test for di?erence of proportions.
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[Maximum Marks : 80
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YBCA15292 1 (Contdf)

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Explain thc mqu (C usher's L-traxblbmmtivn, 4
D%scuss largx samrlc tat t'or di?'crcncc 01' means. 4
Explain large sample ml for single sample proportion. 4
E>.plain the conce )1 01 non-paramcmc wsts. StaLe 1hc awsumption of Non-parametric
methods. 0
Discuss Run test. ()btuir the distribution of number 01' odd and even runs. 6
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Explain order statistic \?.?i1h the help of example. StaLc the advantages and disadvantages of
non-paramchic method (,
Discuss Kohnognrm mm? Two samplc Icst. 6
Dcz?me :
(i) Marshall Edgaxonh price index number 4
(ii) Dorbish-Bowlcg's pmc indcx number.
Show that Fisher?s index number lies between Laupcyre?s and Paasche's index numbers 4
Explain cost of living; index number state its uses. 4
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De?ne :
(i) Paasche's index numhcr
(ii) Fisher's index numbcr. 4
Show that Fishcr's inicx xwumbcr satis?es time reversal test. 4
Explain family budget mclhod of obtaining cost of living index number. 4
De?ne Trend and explain 'nmving average method for mcasurzmem of trend. (?
Whai do you mean by Llcscasonalization of data ? Discuss simple average method for
seasonal variations. 6
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De?ne time series. DubCl'lb: mathematical modcls in Iimu seri:s. 6
Explain Ratio to trcnd mctl 10:! of obmining sezmoml indices. 0
De?n: :
(i) Complemer?ary gums
(ii) Equilibrium price 4
Discuas Parctn's law 01? mama distribution. 4
Describe the tcmu price elasticil} of demand. 4
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De?ne :
(i) Necessities and luxuries
(ii) Income elasticity. 4
Explain law of demand and :upp1y 4
Discuss; cross elasticities? of ucmand. 4
YBC? 715292 .? I75