Business Statistics And Research Methods - Study Mode

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[#191] Match the following. List-I (Terms) List-II (Definitions) a. Simple regression 1. Process of predicting one variable from another b. Multiple regression 2. Single variable is used to predict another variable on the assumption of linear relationship between the given variables c. Simple linear regression analysis 3. Involves two or more independent variables and one dependent variable

(A) a-1, b-2, c-3

(B) a-1, b-3, c-2

(C) a-3, b-1, c-2

(D) a-3, b-2, c-1

Correct Answer

(B) a-1, b-3, c-2

[#192] By which of the following methods, the sampling error, in comparison to biased approach, can be reduced?

(A) increasing response rate

(B) interpolation

(C) increasing the sample size

(D) changing the title

Correct Answer

(C) increasing the sample size

[#193] The significance of the difference between two means of the populations, when σ 2 values are known and equal, is tested by

(A) z - test

(B) t - test

(C) f - test

(D) x 2 - test

Correct Answer

(D) x 2 - test

[#194] The . . . . . . . . is less sensitive to extreme scores than the . . . . . . . .

(A) median, mean

(B) mean, median

(C) mode, median

(D) None of the above

Correct Answer

(A) median, mean

[#195] If a frequency distribution is positively skewed, the mean of the distribution is:

(A) greater than the mode

(B) less than the mode

(C) equal to the mode

(D) none of these

Correct Answer

(A) greater than the mode