1. Given =0.05 and the test statistics, decide whether the null hypothesis is to be rejected or accepted: 3.31

Select one:

a. Cannot be determined

b. Reject

c. Do not Reject

2. Supposed that the z is the test statistics for hypothesis testing, calculate the value of the z for each of the following. Express your answer in 2 decimal places. = 31.2, = 3, n = 66, x = 32

3. A company that packages peanuts states that at a maximum 8% of the peanut shells contain no nuts. At random, 500 peanuts were selected and 31 of them were empty.

With a significance level of 1%, What decision should be made.

Select one:

a. Failed to accept null hypothesis

b. Accept null hypothesis

c. Failed to accept alternative hypothesis

d. Accept alternative hypothesis

4. Supposed that the z is the test statistics for hypothesis testing, calculate the value of the z for each of the following. Express your answer in 2 decimal places. = 8, = 4, n = 99, x = 7.2