1. assume it should be a z test. what decision would be made for a hypothesis...

1. assume it should be a z test. what decision would be made for a hypothesis test at significance 0.05 if you calculated a test statistic of 1.94?

a. Reject the null

b. sometimes reject the null

c. reject the alternative

d. do not reject the null

2. A sample of size 24 is collected, with sample average 47.1. If the population standard deviation is 12, what decision would be made to test that the population mean equals 50 at significance 0.01?

a. Reject the null

b. sometimes reject the null

c. reject the alternative

d. do not reject the null

3. A sample of size 16 is collected, with sample average 77. If the population standard deviation is 7. What decision would be made for a one-tailed test that the population mean equals 75 at significance 0.05?

a. Reject the null

b. sometimes reject the null

c. reject the alternative

d. do not reject the null

Solutions

Expert Solution

orchestra answered 1 year ago

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