Business Statistics and Research Methods MCQs

Question 1

The errors which do not occur in census investigation are

Accepted Answer

Sampling error

Answer

Non-sampling error

Answer

Biased error

Answer

None of these

Question 2

If A and B are mutually exclusive events P (AB) = ?

Accepted Answer

zero

Answer

P(A) + P(B)

Answer

P(A)

Answer

None of these

Question 3

Consider the following statements. Statement-I: The heading for columns and rows are called caption and stub respectively. Statement-II: Sturge's Rule is used to decide the nature of manifold classification. Which of the following is correct?

Accepted Answer

Both I and II are true

Answer

Both I and II are false

Answer

I is true and II is false

Answer

I is false and II is true

Question 4

In case of business forecasting which of the following statements in not correct?

Accepted Answer

Short range forecasts are less accurate than long range forecasts

Answer

Under time series forecast data obtained from past experience is analysed

Answer

Index numbers in one of the methods of forecasting

Answer

Least squares method of business forecasting is also known as perfect/best line

Question 5

Given the following data - 1, 2, 3, 4 and 100, the best measure of central tendency is the

Accepted Answer

geometric mean

Answer

arithmetic mean

Answer

median

Answer

mode

Question 6

For 3X2 contingency table, the degree of freedom for testing the hypothesis is

Accepted Answer

6

Answer

2

Answer

3

Answer

4

Question 7

Any sampling process which does not ensure some for each element in the population to be included in the sample would be non-probability sampling or sampling.

Accepted Answer

Non-zero probability

Answer

Zero probability

Answer

Multiple probability

Answer

None of these

Question 8

When both the lower and upper limits of a class are included such classes are called

Accepted Answer

Inclusive

Answer

Exclusive

Answer

Open ended classes

Answer

Cumulative

Question 9

The lower and upper quartiles of a distribution are 80 and 120 respectively, while median is 100. The shape of the distribution is:

Accepted Answer

Symmetrical

Answer

Positively skewed

Answer

Negatively skewed

Answer

Normal