Statistics for Business and Economics
8th Edition
ISBN: 9780132745659
Author: Paul Newbold, William Carlson, Betty Thorne
Publisher: PEARSON
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Textbook Question
Chapter 2.4, Problem 39E
Acme Delivery offers three different shipping rates for packages fewer than 5 pounds delivered from Maine to the West Coast: regular, $3; fast, $5; and lightning, $10. To test the quality of these services, a major mailorder retailer shipped 15 packages at randomly selected times from Maine to Tacoma, Washington. The packages were shipped in groups of three by the three services at the same time to reduce variation resulting from the shipping day. The following data show the shipping cost, X, and the number of days, Y, in (x, y) pairs:
(3, 7) (5, 5) (10, 2) (3, 9) (5, 6) (10, 5) (3, 6) (5, 6)
(10, 1) (3, 10) (5, 7) (10, 4) (3, 5) (5, 6) (10, 4)
- a. Describe the data numerically (covariance and correlation).
- b. Discuss the value of the higher-priced services in terms of quicker delivery.
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Chapter 2 Solutions
Statistics for Business and Economics
Ch. 2.1 - Prob. 1ECh. 2.1 - Prob. 2ECh. 2.1 - Prob. 3ECh. 2.1 - Prob. 4ECh. 2.1 - Prob. 5ECh. 2.1 - Prob. 6ECh. 2.1 - Prob. 7ECh. 2.1 - Prob. 8ECh. 2.1 - A random sample of 156 grade point averages for...Ch. 2.1 - Prob. 10E
Ch. 2.2 - Prob. 12ECh. 2.2 - Prob. 13ECh. 2.2 - Prob. 14ECh. 2.2 - Prob. 15ECh. 2.2 - Prob. 16ECh. 2.2 - Prob. 17ECh. 2.2 - Prob. 18ECh. 2.2 - Prob. 19ECh. 2.2 - Prob. 20ECh. 2.2 - Prob. 21ECh. 2.2 - Prob. 22ECh. 2.2 - Prob. 23ECh. 2.2 - Prob. 24ECh. 2.3 - Prob. 26ECh. 2.3 - Prob. 27ECh. 2.3 - Prob. 28ECh. 2.3 - Prob. 29ECh. 2.3 - Prob. 30ECh. 2.3 - Prob. 31ECh. 2.3 - Prob. 32ECh. 2.3 - Prob. 33ECh. 2.3 - Prob. 34ECh. 2.4 - Prob. 35ECh. 2.4 - Prob. 36ECh. 2.4 - Prob. 37ECh. 2.4 - Prob. 38ECh. 2.4 - Acme Delivery offers three different shipping...Ch. 2.4 - Prob. 40ECh. 2.4 - Prob. 42ECh. 2.4 - Prob. 43ECh. 2 - Prob. 44ECh. 2 - Prob. 46ECh. 2 - Prob. 47ECh. 2 - Prob. 49ECh. 2 - Prob. 50ECh. 2 - Prob. 51ECh. 2 - Prob. 52ECh. 2 - Prob. 55ECh. 2 - Prob. 56E
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