Question 1

A consumer analyst reports that the mean life of a certain type of alkaline battery is no more than 63 months. Write the null and alternative hypotheses and note which is the claim.

A)Ho: 63 (claim), Ha: > 63

B)Ho: > 63 (claim), Ha: 63

C)Ho: 63, Ha: > 63 (claim)

D)Ho: = 63 (claim), Ha: 63

Question 2

A business claims that the mean time that customers wait for service is at most 9.2 minutes. Write the null and alternative hypotheses and note which is the claim.

A)Ho: 9.2, Ha: 9.2 (claim)

B)Ho: > 9.2, Ha: 9.2 (claim)

C)Ho: > 9.2 (claim), Ha: > 9.2

D)Ho: 9.2 (claim), Ha: > 9.2

Question 3

An amusement park claims that the average daily attendance is at least 15,000. Write the null and alternative hypotheses and note which is the claim.

A)Ho: 15000 (claim), Ha: < 15000

B)Ho: > 15000 (claim), Ha: = 15000

C)Ho: 15000, Ha: > 15000 (claim)

D)Ho: = 15000, Ha: 15000 (claim)

Question 4

A transportation organization claims that the mean travel time between two destinations is about 23 minutes. Write the null and alternative hypotheses and note which is the claim.

A)Ho: 23, Ha: = 23 (claim)

B)Ho: = 23 (claim), Ha: 23

C)Ho: > 23, Ha: 23 (claim)

D)Ho: = 23 (claim), Ha: 23

Question 5

If the null hypothesis is not rejected when it is false, this is called __________.

A)the Empirical Rule

B)an alternative hypothesis

C)a type I error

D)a type II error