Refer?to?the?analysis?of?shoppers?in?Exercise?45. (a)…

Refer to the analysis of shoppers in Exercise 45.

(a)  If several of those participating in the loyalty program are members of the same family, would  this cause you to question the assumptions that  underlie the test in this question?

(b)  Several outliers were observed in the data for the loyalty program. Should these high-volume  purchases be excluded?

Exercise 45

A variety of stores offer loyalty programs. Participating shoppers swipe a bar-coded tag at the register  when checking out and receive discounts on certain purchases. Stores benefit by gleaning information  about shopping habits and hope to encourage shoppers to spend more. A typical Saturday morning  shopper who does not participate in this program spends $120 on her or his order. In a sample of 80  shoppers participating in the loyalty program, each shopper spent $130 on average during a recent  Saturday, with standard deviation . (See the histogram on the next page.) Is this statistical proof  that the shoppers participating in the loyalty program  spend more on average than typical shoppers?   (Assume that the data meet the sample size condition.)

(a)  State the null and alternative hypotheses.   Describe the parameters.

(b)  Describe the Type I and Type II errors.

(c)  How large could the kurtosis be without violating the CLT condition?

(d)  Find the -value of the test. Do the data supply enough evidence to reject the null hypothesis if  ?

Place your order
(550 words)

Approximate price: $22

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
The price is based on these factors:
Academic level
Number of pages
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more
error: Content is protected !!