EBK STATISTICS FOR BUSINESS & ECONOMICS
EBK STATISTICS FOR BUSINESS & ECONOMICS
12th Edition
ISBN: 8220100460463
Author: Anderson
Publisher: CENGAGE L
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Chapter 2.3, Problem 35E

The U.S. Department of Energy’s Fuel Economy Guide provides fuel efficiency data for cars and trucks (Fuel Economy website, September, 2012). A portion of the data for 149 compact, midsize, and large cars is shown in Table 2.13. The data set contains the following variables:

 Size: Compact, Midsize, and Large

 Displacement: Engine size in liters

 Cylinders: Number of cylinders in the engine

 Drive: All wheel (A), front wheel (F), and rear wheel (R)

 Fuel Type: Premium (P) or regular (R) fuel

 City MPG: Fuel efficiency rating for city driving in terms of miles per gallon

 Hwy MPG: Fuel efficiency rating for highway driving in terms of miles per gallon

 The complete data set is contained in the file named FuelData2012.

  1. a. Prepare a crosstabulation of the data on Size (rows) and Hwy MPG (columns). Use classes of 15–19, 20–24, 25–29, 30–34, 35–39, and 40–44 for Hwy MPG.
  2. b. Comment on the relationship between Size and Hwy MPG.
  3. c. Prepare a crosstabulation of the data on Drive (rows) and City MPG (columns). Use classes of 10–14, 15–19, 20–24, 25–29, 30–34, and 35–39, and 40–44 for City MPG.
  4. d. Comment on the relationship between Drive and City MPG.
  5. e. Prepare a crosstabulation of the data on Fuel Type (rows) and City MPG (columns). Use classes of 10–14, 15–19, 20–24, 25–29, 30–34, 35–39, and 40–44 for City MPG.
  6. f. Comment on the relationship between Fuel Type and City MPG.
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Chapter 2 Solutions

EBK STATISTICS FOR BUSINESS & ECONOMICS

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