A marketing firm wished to determine whether the number of television commercials broadcast was linearly correlated with

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A marketing firm wished to determine whether the number of television commercials broadcast was linearly correlated with the sales of its product. The data, obtained from each of several cities, are shown in the following table.

a. Draw a scatter diagram.
b. Estimate r.
c. Calculate r.

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Elementary Statistics

ISBN: 9780538733502

11th Edition

Authors: Robert R. Johnson, Patricia J. Kuby

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Question Posted: Aug 27, 2015 07:09 AM

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A marketing firm wished to determine whether the number of television commercials broadcast was linearly correlated with

Question:

City A B C D E F GHI J Commercials, 12 69 15 15 8 16 126 Sales Units, y7 5 10 14 12 9 61 11 8

Step by Step Answer:

a b From 12 to 23 c Summations from extensions table n 10 x 11...View the full answer

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