# 12.5 Circulation is the lifeblood of the publishing business. The larger the sales of a magazine …

12.5 Circulation is the lifeblood of the publishing business.   The larger the sales of a magazine, the more it can charge advertisers.   Recently, a circulation gap has appeared between the publishers’ reports of   magazines’ newsstand sales and subsequent audits by the Audit Bureau of   Circulations. The data in the file represent the reported and audited   newsstand yearly sales (in thousands) for the following 10 magazines:        Magazine   Reported (X) Audited (Y)   YM 621 299.6    CosmoGirl   359.7 207.7   Rosie 530   325    Playboy   492.1 336.3    Esquire 70.5   48.6    TeenPeople   567 400.3   More 125.5   91.2    Spin 50.6   39.1    Vogue 353.3   268.6    Elle 263.6   214.3         a. Construct   a scatter plot.   For these   data, b0 = 26.724 and b1 = 0.5719.   b. Interpret   the meaning of the slope, b1, in this problem.   c. Predict   the audited newsstand sales for a magazine that reports newsstand sales of   400,000.

12.9 An agent for a   residential real estate company in a large city would like to be able to   predict the monthly rental cost for apartments, based on the size of the   apartment, as defined by square footage. A sample of 25 apartments (stored in   the file Rent) in a particular residential neighborhood was selected, and the   information gathered revealed the following:      a. Construct a scatter plot.   b. Use the least-squares method to find   the regression coefficients b0 and b1.   c. Interpret the meaning of b0 and b1 in   this problem.   d. Predict the monthly rent for an   apartment that has 1,000 square feet.   e. Why would it not be appropriate to use   the model to predict the monthly rent for apartments that have 500 square   feet?   f. Your friends Jim and Jennifer are   considering signing a lease for an apartment in this residential   neighborhood. They are trying to decide between two apartments, one with   1,000 square feet for a monthly rent of \$1,275 and the other with 1,200   square feet for a monthly rent of \$1,425. Based on (a) through (d), which   apartment do you think is a better deal?      Rent Size   950 850   1600 1450   1200 1085   1500 1232   950 718   1700 1485   1650 1136   935 72 6   875 700   1150 956   1400 1100   1650 1285   2300 1985   1800 1369   1400 1175   1450 1225   1100 1245   1700 1259   1200 1150   1150 896   1600 1361   1650 1040   1200 755   800 1000   1750 1200

12.17 In Problem 12.5   on page 417, you used reported magazine newsstand sales to predict audited   sales (stored in the file Circulation). For that data, SSR = 130,301.41 and   SST = 144,538.64.      Magazine Reported Audited   YM 621.0 299.6   CosmoGirl 359.7 207.7   Rosie 530.0 325.0   Playboy 492.1 336.3   Esquire 70.5 48.6   TeenPeople 567.0 400.3   More 125.5 91.2   Spin 50.6 39.1   Vogue 353.3 268.6   Elle 263.6 214.3   a. Determine the coefficient of   determination, r2, and interpret its meaning.   b. Determine the standard error of the   estimate.   c. How useful do you think this   regression model is for predicting audited sales?

Pages (550 words)
Approximate price: -

Why Work with Us

Top Quality and Well-Researched Papers

We always make sure that writers follow all your instructions precisely. You can choose your academic level: high school, college/university or professional, and we will assign a writer who has a respective degree.

We have a team of professional writers with experience in academic and business writing. Many are native speakers and able to perform any task for which you need help.

Free Unlimited Revisions

If you think we missed something, send your order for a free revision. You have 10 days to submit the order for review after you have received the final document. You can do this yourself after logging into your personal account or by contacting our support.

Prompt Delivery and 100% Money-Back-Guarantee

All papers are always delivered on time. In case we need more time to master your paper, we may contact you regarding the deadline extension. In case you cannot provide us with more time, a 100% refund is guaranteed.

Original & Confidential

We use several writing tools checks to ensure that all documents you receive are free from plagiarism. Our editors carefully review all quotations in the text. We also promise maximum confidentiality in all of our services.

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Try it now!

## Calculate the price of your order

Total price:
\$0.00

How it works?

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Our Services

No need to work on your paper at night. Sleep tight, we will cover your back. We offer all kinds of writing services.

## Essay Writing Service

No matter what kind of academic paper you need and how urgent you need it, you are welcome to choose your academic level and the type of your paper at an affordable price. We take care of all your paper needs and give a 24/7 customer care support system.