# Hypothesis Testing Quiz 3

the post is about Hypothesis Testing Quiz from Statistical Inference for the preparation of exams and different statistical job tests in Government/ Semi-Government or Private Organization sectors. These tests are also helpful in getting admission to different colleges and Universities. The Hypothesis Testing Quiz will help the learner understand the related concepts and enhance the knowledge.

Most of the MCQs on this page are covered from Estimate and Estimation, Hypothesis Testing, Parametric and Non-Parametric tests, etc. Let’s start the MCQs Hypothesis Testing quiz now.

1. For testing the equality of several variances the appropriate test is

2. In testing the difference between two populations, it is possible to use

3. The average growth of a certain variety of pine trees is 10.1 inches in three years. A biologist claims that a new variety will have greater three-year growth. A random sample of 25 of the new variety has an average three-year growth of 10.8 inches and a standard deviation of 2.1 inches. The appropriate null and alternative hypotheses to test the biologist’s claim are:

4. In hypothesis testing, type II error is represented by $\beta$ and the power of the test is $1-\beta$ then

5. In statistical testing of the hypothesis, what happens to the region of rejection when the level of significance $\alpha$ is reduced?

6. In hypothesis testing, you need to conclude, and you fail to reject a null hypothesis, which is actually false. What type of error do they commit?

7. A data analyst conducts a hypothesis test. They fail to reject the null hypothesis. What statement best describes their conclusion?

8. Which of the following is NOT correct?

9. In testing the statistical hypothesis, which of the following statement(s) is false?

10. The following are percentages of fat found in 5 samples of each of the two brands of baby food:
A:    5.7, 4.5, 6.2, 6.3, 7.3
B:    6.3, 5.7, 5.9, 6.4, 5.1
Which of the following procedures is appropriate to test the hypothesis of equal average fat content in the two types of ice cream?

11. If a Chi-square goodness of fit test has 6 categories and an $N=30$, then the correct number of degrees of freedom is:

12. Suppose you conduct a hypothesis test and choose a significance level of 5%. You calculate a