2-The probability of a Type II error is (beta)

Group of answer choices

True

False

3-The power of a statistical test is 1 - (1 - beta)

Group of answer choices

a. True

b.False

4- The following two hypotheses are tested:

Ho: The proportion of UF students who have seen a dentist this year is 60%

Ha: The proportion of UF students who have seen a dentist this year is less than 60%

Which of the situations below corresponds to a Type I error.

Group of answer choices

a.We fail to conclude that the proportion of UF students who have seen a dentist this year is less than 60% when in fact it is less than 60%.

b.We conclude that the proportion of UF students who have seen a dentist this year is less than 60% when in fact it is 60%.

5-The following two hypotheses are tested:

Ho: The average commute time of UF faculty is 15 minutes

Ha: The average commute time of UF faculty is more than 15 minutes

Which of the situations below corresponds to a Type II error.

Group of answer choices

a.We conclude that the average commute time of UF faculty is more than 15 minutes when in fact it is 15 minutes.

b.We fail to conclude that the average commute time of UF faculty is more than 15 minutes when in fact it is more than 15 minutes.

6-In which of the following situations can we NOT use the one sample t-test for a population mean.

Group of answer choices

a. Small Sample, Variable is Not Normally Distributed

b. Large Sample, Variable is Normally Distributed

c.Small Sample, Variable is Normally Distributed

d. Large Sample, Variable is Not Normally Distributed

7- In which of the following situations can we NOT use the one sample z-test for a population proportion.

Group of answer choices

a. p-hat = 0.08, n = 100

b. p-hat = 0.45, n = 30

c. p-hat = 0.7, n = 50

d. p-hat = 0.25, n = 80

8- The following two hypotheses are tested:

Ho: The proportion of UF students who have abused prescription drugs is 8%

Ha: The proportion of UF students who have abused prescription drugs is not 8%

If the test statistic is 2.32, the p-value would be

Group of answer choices

a.0.9898

b. 0.0204

c. 0.0051

d. 0.9796

e. 0.0102