Restaurant X Restaurant Y 89 101 121 125 116 153 143 117 270 171 183 134 122 114 151 122 158 127 210 129 335 137 305 140 181 227 116 216 161 291 152 125 95 95 238 136 243 242 189 146 155 148 196 201 168 149 123 142 62 141 198 143 182 154 117 139 139 169 169 138 185 244 198 234 236 248 192 237 352 234 304 165 213 85 192 110 183 58 184 172 107 79 143 147 175 138 157 99 173 131 155 150 170 127 127 185 136 145 306 132     Refer to the accompanying data set of mean​ drive-through service times at dinner in seconds at two fast food restaurants. Construct a 95​% confidence interval estimate of the mean​ drive-through service time for Restaurant X at​ dinner; then do the same for Restaurant Y. Compare the results.   Construct a 95​% confidence interval of the mean​ drive-through service times at dinner for Restaurant X.

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