Reference no: EM132139544

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: μ ≤ 63 (claim), Ha: μ > 63

B)Ho: μ > 63 (claim), Ha: μ ≤ 63

C)Ho: μ ≤ 63, Ha: μ > 63 (claim)

D)Ho: μ = 63 (claim), Ha: μ ≥ 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: μ ≥ 9.2, Ha: μ ≤ 9.2 (claim)

B)Ho: μ > 9.2, Ha: μ ≤ 9.2 (claim)

C)Ho: μ > 9.2 (claim), Ha: μ > 9.2

D)Ho: μ ≤ 9.2 (claim), Ha: μ > 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: μ ≥ 15000 (claim), Ha: μ < 15000

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

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

D)Ho: μ = 15000, Ha: μ ≤ 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: μ ≠ 23, Ha: μ = 23 (claim)

B)Ho: μ = 23 (claim), Ha: μ ≠ 23

C)Ho: μ > 23, Ha: μ ≤ 23 (claim)

D)Ho: μ = 23 (claim), Ha: μ ≤ 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