[Step-by-Step] Driving for Pleasure Two groups of drivers are surveyed to see how many miles per week they drive for pleasure, trips. The data are shown. At


Question: Driving for Pleasure Two groups of drivers are surveyed to see how many miles per week they drive for pleasure, trips. The data are shown. At \(\alpha \) = 0.01, can it he concluded that single drivers do more driving for pleasure trips on average than married drivers? Assume \({{\sigma }_{1}}\) = 16.7 and \({{\sigma }_{2}}\) = 16.1.

Single diners Married drivers

106 110 115 121 132 97 104 138 102 115

119 97 118 1/2 135 133 120 119 136 96

110 117 116 138 142 139 108 117 145 114

115 114 103 98 99 140 136 113 113 150

108 117 152 147 117 101 114 116 113 135

154 86 115 116 104 115 109 147 106 88

107 133 138 142 140 113 119 99 108 105

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