Business Statistics and Research Methods MCQs

A functional relationship between two variables is called

Match the following items of List-I and List-II with regard to hypothesis-testing. List-I List-II a. The ability of test to reject the null hypothesis when it is false 1. Level of significance b. The probability of accepting a false null hypothesis 2. Type I error c. The probability of rejecting a true null hypothesis due to sampling error 3. Type II error d. The probability of rejecting a true null hypothesis 4. Power of a test

Each normal distribution is defined by its two parameters viz.

If the percentage error is -2 and the estimated value is 500, then the actual value will be

If P(B/A) = p(b), then P(A $$ \cap $$ B) =?

The number of COVID19 viruses observed under 5 separate electronic slides were 3, 4, 5, 6 and 7. The sum of squared deviations of observations from their sample mean is:

Given, mode = 22 and median = 21.4. Find out the average mean.

Karl Pearson's coefficient of skewness is calculated by following formula.

In a negatively skewed distribution