Question 16(CO7) A company claims that its heaters last at most 5 years. Write the null and alternative

hypotheses and note which is the claim.

A)Ho: μ ≤ 5 (claim), Ha: μ > 5

B)Ho: μ = 5 (claim), Ha: μ ≥ 5

C)Ho: μ > 5 (claim), Ha: μ ≤ 5

D)Ho: μ ≤ 5, Ha: μ > 5 (claim)

Question 17

(CO7) An executive claims that her employees spend more than 2.5 hours each week in meetings. Write the null and alternative hypotheses and note which is the claim.

A)Ho: μ ≤ 2.5 (claim), Ha: μ > 2.5

B)(Ho: μ = 2.5 (claim), Ha: μ ≥ 2.5

C)Ho: μ > 2.5, Ha: μ ≤ 2.5 (claim)

D)Ho: μ ≤ 2.5, Ha: μ > 2.5 (claim)

Question 18

(CO7) In hypothesis testing, a key element in the structure of the hypotheses is that the math tests the support for the ________________________.

A)the truth

B)alternative hypothesis

C)null hypothesis

D)claim

Question 19

(CO7) A landscaping company claims that at most 90% of workers arrive on time. If a hypothesis test is performed that fails to reject the null hypothesis, how would this decision be interpreted?

A)There is sufficient evidence to support the claim that at most 90% of workers arrive on time

B)There is sufficient evidence to support the claim that a least 90% of workers arrive on time

C)There is not sufficient evidence to support the claim that at least 90% of workers arrive on time

D)There is not sufficient evidence to support the claim that at most 90% of workers arrive on time

Question 20

(CO7) A textbook company claims that their book is so engaging that less than 55% of students read it. If a hypothesis test is performed that fails to reject the null hypothesis, how would this decision be interpreted?

A)There is sufficient evidence to support the claim that less than 55% of students read this text

B)There is sufficient evidence to support the claim that no more than 55% of students read this text

C)There is not sufficient evidence to support the claim that less than 55% of students read this text

D)There is not sufficient evidence to support the claim that no more than 55% of students read this text

 

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