Business Statistics and Research Methods MCQs

Question 1

The coefficient of Kurtosis under binomial distribution $$'{\beta _2}'$$ is equal to

Accepted Answer

$$3 + \frac{{1 - 6pq}}{{npq}}$$

Answer

$$6 + \frac{{1 - 3pq}}{{npq}}$$

Answer

$$6 + \frac{{1 - 6p}}{{pq}}$$

Answer

None of these

Question 2

Why is it important to have well formulated research questions?

Accepted Answer

All of the above

Answer

It gives greater clarity to the research process and what you wish to research

Answer

It leads to more focused research

Answer

It provides more structure to my work

Question 3

Under poisson distribution, value of e-m are derived from

Accepted Answer

'm' given values

Answer

'm' unknown values

Answer

'm' calculated values

Answer

None of these

Question 4

If the first quartile is 142 and the semi-inter quartile range is 18, then assuming the distribution to be symmetrical, the value of median is

Accepted Answer

151

Answer

160

Answer

171

Answer

180

Question 5

The coefficient of variation is the percentage-

Accepted Answer

standard deviation

Answer

mean deviation

Answer

quartile deviation

Answer

None of these

Question 6

A posterior probability is a . . . . . . . . probability value.

Accepted Answer

revised

Answer

eventual

Answer

initial

Answer

None of the above

Question 7

Which of these must be avoided in a technical report?

Accepted Answer

Subjective evaluation

Answer

Facts

Answer

Logical conclusion

Answer

Objective evaluation

Question 8

In a Poisson Distribution, if 'n' is the number of trials and 'p' is the probability of success, then the mean value is given by:

Accepted Answer

m = np

Answer

m = (np)2

Answer

m = np(1 - p)

Answer

m = p

Question 9

Which among the given statement is false?

Accepted Answer

According to Seligman, "Statistics may be regarded as a body of methods for making wise decisionsin the face of incertainty"

Answer

According to Boddington, "Statistics is the science of estimates and probabilities"

Answer

According to Bowley, "Statistics may rightly be called the science of averages"

Answer

According to Tippett, "Statistics is not a science, it is a scientific method"