In: Math
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.
| Restaurant X |
| 88 |
| 125 |
| 123 |
| 146 |
| 267 |
| 181 |
| 126 |
| 150 |
| 160 |
| 214 |
| 329 |
| 308 |
| 181 |
| 110 |
| 160 |
| 145 |
| 93 |
| 230 |
| 237 |
| 184 |
| 158 |
| 198 |
| 170 |
| 117 |
| 65 |
| 199 |
| 175 |
| 112 |
| 143 |
| 169 |
| 189 |
| 196 |
| 231 |
| 194 |
| 351 |
| 307 |
| 212 |
| 198 |
| 181 |
| 189 |
| 109 |
| 151 |
| 180 |
| 151 |
| 176 |
| 160 |
| 169 |
| 122 |
| 140 |
| 314 |
| Restaurant Y |
| 103 |
| 123 |
| 152 |
| 117 |
| 173 |
| 129 |
| 112 |
| 125 |
| 131 |
| 130 |
| 136 |
| 132 |
| 229 |
| 214 |
| 291 |
| 126 |
| 98 |
| 137 |
| 239 |
| 145 |
| 142 |
| 201 |
| 147 |
| 145 |
| 137 |
| 148 |
| 159 |
| 131 |
| 168 |
| 136 |
| 241 |
| 236 |
| 255 |
| 237 |
| 229 |
| 166 |
| 86 |
| 110 |
| 57 |
| 175 |
| 77 |
| 143 |
| 145 |
| 97 |
| 125 |
| 153 |
| 132 |
| 179 |
| 151 |
| 124 |