10.23 in tough economic times, the business staff at magazines

      10.23 In tough economic times, the business staff at   magazines   are challenged to sell advertising space in their   publications.   Thus, one indicator of a weak economy is the   decline in   the number of “ad pages” that magazines have   sold. The   file contains the number of ad pages   found in the   May 2008 and May 2009 issues of 12 men’s   magazines.   (Data extracted from W. Levith, “Magazine   Monitor,”   Mediaweek, April 20, 2009, p. 53.)   a. At the   0.05 level of significance, is there evidence that   the mean   number of ad pages was higher in May 2008   than in May   2009?   b. What   assumption is necessary about the population   distribution   in order to perform this test?   c. Use a   graphical method to evaluate the validity of the   assumption   in (b).   d. Construct   and interpret a 95% confidence interval   estimate of   the difference in the mean number of ad pages   in men’s   magazines between May 2008 and May 2009.    

      Magazine 2008 2009   Details 72.31 48.42   Esquire 66.69 42.79   Field & Stream 48.65 42.82   Flex 219.61 231.58   GQ 99.21 60.35   Maxim 68.5 41.82   Men’s Fitness 99.43 67.63   Men’s Health 90.88 74.45   Men’s Journal 183.1 88.34   Mucscle & Fitness 169.63 198.93   Outdoor Life 41.39 30.16   Outside 126.97 103.58    

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