Question 1
pts
(CO 5) A company claims that its heaters last more than 5 years. Write the null and
alternative hypotheses and note which is the claim.
Ho: μ = 5 (claim), Ha: μ ≥ 5
Ho: μ > 5 (claim), Ha: μ ≤ 5
Correct Answer
Ho: μ ≤ 5, Ha: μ > 5 (claim)
You Answered
Ho: μ ≤ 5, Ha: μ < 5 (claim)
Question 2
pts
(CO 5) An executive claims that her employees spend no less than 2.5 hours each
week in meetings. Write the null and alternative hypotheses and note which is the
claim.
Ho: μ ≤ 2.5 (claim), Ha: μ > 2.5
Correct Answer
Ho: μ ≥ 2.5 (claim), Ha: μ < 2.5
You Answered
Ho: μ > 2.5, Ha: μ ≤ 2.5 (claim)
Ho: μ = 2.5, Ha: μ ≥ 2.5 (claim)
See text page 349
Question 3
, pts
(CO 5) In hypothesis testing, a key element in the structure of the hypotheses is
that the alternative hypothesis has the ________________________.
truth
You Answered
claim
equality
Correct Answer
simple inequality
Question 4
pts
(CO 5) 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?
There is not sufficient evidence to support the claim that at least 90% of workers
arrive on time
There is not sufficient evidence to support the claim that at most 90% of workers
arrive on time
There is sufficient evidence to support the claim that a least 90% of workers arrive
on time
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller VEVA2K. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.98. You're not tied to anything after your purchase.