Free MDTP Inferential Statistics Questions and Answers

Question 1

What is the primary goal of inferential statistics?

Accepted Answer

To make inferences about a population based on a sample

Answer

To describe data

Answer

To organize data

Answer

To calculate the mean of a data set

Question 2

Which of the following is a point estimate?

Accepted Answer

Sample mean

Answer

Population mean

Answer

Population variance

Answer

Population standard deviation

Question 3

Which of the following statements best describes the confidence interval?

Accepted Answer

It is the range within which the population parameter lies, with a certain level of confidence.

Answer

It is the range within which the sample mean lies.

Answer

It is the probability of rejecting the null hypothesis.

Answer

It is the probability of observing a given sample.

Question 4

What does the p-value represent in hypothesis testing?

Accepted Answer

The probability of obtaining a test statistic at least as extreme as the one observed, assuming the null hypothesis is true

Answer

The probability that the null hypothesis is true

Answer

The probability that the alternative hypothesis is true

Answer

The critical value for rejecting the null hypothesis

Question 5

Which of the following distributions is used when conducting a t-test?

Accepted Answer

t-distribution

Answer

Normal distribution

Answer

Binomial distribution

Answer

Poisson distribution