Economics: Cost of Living Index In the following data

Chapter , Problem 15

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Economics: Cost of Living Index In the following data pairs, A represents the cost of living index for housing and B represents the cost of living index for groceries. The data are paired by metropolitan areas in the United States. A random sample of 36 metropolitan areas gave the following information. (Reference: Statistical Abstract of the United States, 121st edition.) A: 132 109 128 122 100 96 100 131 97 B: 125 118 139 104 103 107 109 117 105 A: 120 115 98 111 93 97 111 110 92 B: 110 109 105 109 104 102 100 106 103 452 Chapter 9 HYPOTHESIS TESTING A: 85 109 123 115 107 96 108 104 128 B: 98 102 100 95 93 98 93 90 108 A: 121 85 91 115 114 86 115 90 113 B: 102 96 92 108 117 109 107 100 95 i. Let d be the random variable d A B. Use a calculator to verify that and sd 12.124. ii. Do the data indicate that the U.S. population mean cost of living index for housing is higher than that for groceries in these areas? Use a 0.05.