Commerce · all questions

Business Statistics and Research Methods
practice.

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Q21

Karl Pearson's coefficient of correlation between two variables is

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Q22

When quantitative measures for certain factors cannot be fixed the measure which is generally adopted is known as?

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Q23

Statement I: If the alternative hypothesis is as

μ \neq = μ_{0}

; a researcher requires two-tailed test in hypothesis-testing.
Statement II: The mean of the sampling distribution of mean is not equal to the parametric value of mean.

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Q24

If unexplained variation between variables X and Y is 36%, what is the coefficient of correlation between the variables?

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Q25

A reasoning where we start with certain particular statements and conclude with a universal statement is called:

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Q26

Process of arranging data into a new order is called

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Q27

From the following, identify one situation where 'F' test cannot be used.

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Q28

The most widely used method of measuring seasonal variations is

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Q29

Sturge's rule is used to find out directly

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Q30

Action research that is usually meant for professional people is:

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Q31

The index number express-

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Q32

An ogive is:

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Q33

Which one of these variables is a continuous random variable?

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Q34

Correlation coefficient

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Q35

Normally the reports present conclusions are based on:

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Q36

Match the items of List I with the items of List-II and select the correct answer:

List-I	List-II
a. Contingency coefficient for any size of contingency table	1. $\frac{N - n}{N - 1}$
b. Statistical approach to decide size of a sample	2. $\frac{σ _{p}}{n}$
c. Finite population multiplier	3. $\frac{x ^{2}}{x ^{2} + n}$
d. Standard error of mean	4. $\frac{Z ^{2} \cdot σ _{p}^{2}}{e ^{2}}$

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Q37

In the regression equation Y = a + b X, a is called:

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Q38

To show the trend for a variable, which one of the presentation method is used?

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Q39

Which one of the following is a relative measures of dispersion?

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Q40

Which one of the following formulas is used to calculate probable error of correlation coefficient between two variables of

^{'} n^{'}

pairs of observations?

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