1. Which hypothesis, the null or the alternative, is the status-quo hypothesis?

Choose the correct answer below

A. null hypothesis

B. alternative hypothesis

2. What is the level of significance of a test of hypothesis?

Choose the correct answer below

A. The level of significance, β, is the probability of committing a Type II error, rejecting the null hypothesis when it is, in fact, true

B. The level of significance, α, is the probability of committing a Type II error, rejecting the null hypothesis when it is, in fact, true

C. The level of significance, α, is the probability of committing a Type I error, rejecting the null hypothesis when it is, in fact, true

D. The level of significance, β, is the probability of committing a Type II error, not rejecting the null hypothesis when it is, in fact, false

E. The level of significance, β, is the probability of committing a Type I error, rejecting the null hypothesis when it is, in fact, true

F. The level of significance, α, is the probability of committing a Type I error, not rejecting the null hypothesis when it is, in fact, false

3. For each of the following rejection regions, sketch the sampling distribution for z and indicate the location of the rejection region, and determine the probability that a Type I error will be made.

a. z < - 1.645 b. z > 2.575 c. z < - 1.28 or z > 1.28 d. z < - 2.33

Which sketch below shows the sampling distribution for the rejection region z < - 1.645?

A. B. C.

Correct Answer = A

What is the probability that a Type I error will be made for z < - 1.645? α=.05 b. Which sketch below shows the sampling distribution for the rejection region z > 2.575?

A. B. C.

Correct Answer = C

What is the probability that a Type I error will be made for z > 2.575? α=.005 c. Which sketch below shows the sampling distribution for the rejection region z < - 1.28 or z > 1.28?

A. B. C.

Correct Answer = B

What is the probability that a Type I error