8/18/2019 Mid Term Exam-stat 1

1/2

Nepathya CollegeMid Term Exam

2072Bachelor Level/ First Semester Fll Mar!s" #0Stat$%0& 'ass Mar!s" 20(Statistics)*+ Time" 2 ,ors

-rop .  (2%0 20+1.Discuss the procedure of Kruskal-Wallis H test. Following data represent the marks

obtained by a student in three different subjects during first semester of . !c."!#$.!ubjects %arks

%athematics &1 '( )* '& &+

,robability and !tatistics ' ') &* )

!tatistics-# & ' /( '*

$est whether there is significant difference between the marks in three subjects or not.

*. Discuss the procedure of  χ 2

-test 0goodness of fit and independence of 

attributes. #n an e2periment on pea breeding3 %endal obtained the followingfre4uencies of seeds5 +1( rounds and yellow3 11 wrinkle and yellow3 1& roundsand green3 +* wrinkles and green in total of ((/. $heory predicts that the fre4uenciesshould be in the ratio )5+5+51 respecti6ely. !et up proper hypothesis and test it at (7le6el of significance

-rop B (1# 0+ +. $he win- loss records of a certain basketball team were as follows5  W W W W W W 8 W W W W W W 8 W 8 W W W 8 8 W W W W 8 W W W 8 8 W W

W W W W 8 8W W W W W W 8 8 W W 8 8 8 W W 8 W W W 9pply run test to test the null hypothesis that the se4uence of wins 0W and losses 08is random.. 9n e2periment is conduct to judge the effect of brand name 4uality perception. 1/

subjects are recruited for the purpose and are asked to test and compare twosamples of product on a set of scale items judged to be ordinal and the followingdata are obtained.

, a i r  

rand 9

rand

  $est the null hypothesis3 using Wilco2on matched pairs test that there is nodifference between the percei6ed 4ualities of the two samples at (7 le6el of significance.

 (. $wo groups of rats: one group consisting of trained ones3 another group not trainedone ha6e the following number of trails to achie6e certain criterion.

;ntrained rats ' (+ (1

$rained rats / '( ( &*

;se %ann-Whitney ; test to test the distributions of number of trails of two groups of rats are identical or not

/. !tate the basic assumptions associated with the non-parametric test. What are thead6antages of

8/18/2019 Mid Term Exam-stat 1

2/2

Nepathya CollegeMid Term Exam

2072Bachelor Level/ First Semester Fll Mar!s" #0Stat$%0& 'ass Mar!s" 20(Statistics)*+ Time" 2 ,ors

-rop .  (2%0 20+1.Discuss the procedure of Kruskal-Wallis H test. Following data represent the marks

obtained by a student in three different subjects during first semester of . !c."!#$.

!ubjects %arks%athematics &1 '( )* '& &+

,robability and !tatistics ' ') &* )

!tatistics-# & ' /( '*

$est whether there is significant difference between the marks in three subjects or not.

*. Discuss the procedure of  χ 2

-test 0goodness of fit and independence of 

attributes. #n an e2periment on pea breeding3 %endal obtained the followingfre4uencies of seeds5 +1( rounds and yellow3 11 wrinkle and yellow3 1& roundsand green3 +* wrinkles and green in total of ((/. $heory predicts that the fre4uenciesshould be in the ratio )5+5+51 respecti6ely. !et up proper hypothesis and test it at (7le6el of significance

-rop B (1# 0+

 +. $he win- loss records of a certain basketball team were as follows5

  W W W W W W 8 W W W W W W 8 W 8 W W W 8 8 W W W W 8 W W W 8 8 W WW W W W 8 8W W W W W W 8 8 W W 8 8 8 W W 8 W W W

 9pply run test to test the null hypothesis that the se4uence of wins 0W and losses 08is random.. 9n e2periment is conduct to judge the effect of brand name 4uality perception. 1/

subjects are recruited for the purpose and are asked to test and compare twosamples of product on a set of scale items judged to be ordinal and the followingdata are obtained.

, a i r  

rand 9

rand

  $est the null hypothesis3 using Wilco2on matched pairs test that there is nodifference between the percei6ed 4ualities of the two samples at (7 le6el of significance.

 (. $wo groups of rats: one group consisting of trained ones3 another group not trainedone ha6e the following number of trails to achie6e certain criterion.

;ntrained rats ' (+ (1

$rained rats / '( ( &*

;se %ann-Whitney ; test to test the distributions of number of trails of two groups of rats are identical or not

/. !tate the basic assumptions associated with the non-parametric test. What are thead6antages of