Homework 2 Solutions

Homework 2 Solutions - Homework 2 Chapter 4 Problem 9...

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Homework 2 Chapter 4 Problem 9 Active consumers make up 13.6% of the market and spend an average of \$16.23 per month on your product. Passive consumers make up 23.8% of the market and spend \$9.85. The remaining consumers have average spending of \$14.77. Find the average spending for all consumers. (0.136 * 16.23) + (0.238 * 9.85) + (0.626 * 14.77) = \$13.80 Problem 18 Consider the percent change in housing values over a five-year period for regions of the United States, as shown in Table 4.3.5. Percent Change in Housing Values over Five Years for U.S. Regions Region Percent Change Region Percent Change New England 54.5% West North Central 38.3% Pacific 48.9 West South Central 29.5 Middle Atlantic 35.3 East North Central 32.0 South Atlantic 33.6 East South Central 26.0 Mountain 34.2 a. Find the mean and median percent change in housing values. Mean = 9 26 32 5 . 29 3 . 38 2 . 34 6 . 33 3 . 35 9 . 48 5 . 54 + + + + + + + + = 36.9% Median Rank = 5 2 1 9 = + Ranked Values: 26, 29.5, 32, 33.6, 34.2, 35.3, 38.3, 48.9, 54.5 5 th Value is 34.2%

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b. Find the five-number summary for this data set. Smallest Value = Rank of 1 = 26%
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This note was uploaded on 05/05/2010 for the course PHYSICS 121 taught by Professor Padiego during the Fall '09 term at University of Western States.

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Homework 2 Solutions - Homework 2 Chapter 4 Problem 9...

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