Business Statistics and Research Methods MCQs

Question 1

Z-test is better used when sample size is

Accepted Answer

more than 30

Answer

less than 30

Answer

equal to 30

Answer

infinitely large

Question 2

For testing of independence of two attributes, which of the following tests is used?

Accepted Answer

Chi-square Test

Answer

Z Test

Answer

F Test

Answer

T Test

Question 3

In which sampling the entire population is segmented into mutually exclusive groups?

Accepted Answer

Quota sampling

Answer

Convenience sampling

Answer

Judgment sampling

Answer

Snowball sampling

Question 4

Sampling method is prove to be a better method over census under which of the following condition? 1. When sample size is infinite. 2. When each unit of population is heterogenous. 3. When approximated results are required.

Accepted Answer

Both 1 and 3

Answer

Both 1 and 2

Answer

Both 2 and 3

Answer

1, 2 and 3

Question 5

Important factors causing seasonal variations are

Accepted Answer

Weather and social customs

Answer

Increasing in population

Answer

Change in fashion

Answer

Technology improvement

Question 6

A prior probability is an . . . . . . . . probability value.

Accepted Answer

initial

Answer

eventual

Answer

final

Answer

None of these

Question 7

"Statistics is not only a science but it is also a scientific method". Whose statement is this-

Accepted Answer

Croxton and Cowden

Answer

Simpson and Kafka

Answer

Wallis and Robert's

Answer

Yule and Kendall's

Question 8

If the value of correlation coefficient is zero, then both the regression lines

Accepted Answer

Perpendicular to each other

Answer

Cover to each other

Answer

Makes an angle of 45°

Answer

Parallel to each other

Question 9

Reciprocal of 0.062 is-

Accepted Answer

16.13

Answer

0.1613

Answer

1.613

Answer

161.3