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# Commerce Quiz 23 || UGC NET Paper 2 || Business Statistics and Research Methods

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Question 1

Statement (I): t-test and f-test are based on identical assumptions.

Statement (II): t-test is used for comparison between two groups, whereas f-test is used for comparison between more than two groups.

In the context of the above two statements, which one of the following codes is correct?

Question 2

Study the following information:

Covariance between X and Y series = -17.8

Standard deviation of X series = 6.6

Standard deviation of Y series = 4.2

No. of pairs of observation = 20

The coefficient of correlation is

Question 3

Which of the following are considered non-parametric tests?

(a) Mann-Whitney U test

(b) Kruskal-Wallis test

(c) F-test

(d) T-test

(e) Chi-square test

Choose the correct option from the following:

Question 4

In the case of classification of data, the class having its upper limit is treated as the lower limit of its next class is called:

Question 5

Match the items of List - II with the items of List - I and select the code of correct matching. • 1254 attempts Member since Aug 2019 GradeStack Learning Pvt. Ltd.Windsor IT Park, Tower - A, 2nd Floor, Sector 125, Noida, Uttar Pradesh 201303 help@byjusexamprep.com