# Category: Statistics Mcqs

## Which of the following test use Rank Sums____________? A. Kruskal-Wallis and Wilcoxon tests
B. Runs test
C. Chi-Square and sign test
D. F test

## Standard deviation of the sampling distribution of a statistics is called_____________? A. Serious error
B. Dispersion
C. Standard error
D. Difference

## (q + p) has variance is ______________? A. 6 pq
B. npq
C. 7 pq
D. 3 pq

## Type II error is committed when the null hypothesis is _________________? A. Rejected when it is true
B. Rejected when it is false
C. Accepted when it is true
D. Accepted when it is false

## In constructing a histogram which is to be taken along X-axis__________? A. Class interval
B. Class frequency
C. Class boundaries
D. Class mark

## The value of interval x ± S include _______________? A. 49.45%
B. 95.45%
C. 68.27%
D. 99.73%

## The minimum variance unbiased estimator of the population mean is _______________? A. 6/√n
B. S/√n
C. S2/n
D. 6x/√n

## A parameter is a measure which is computed from___________? A. Population data
B. Sample data
C. Test statistics
D. None of these

## When the two regression lines coincide there r is __________________? A. Zero
B. Less than zero
C. More than zero
D. Great

## Which of the following divides a group of data into four subgroups? A. Percentiles
B. Deciles
C. Median
D. Quartiles
E. Standard Deviation