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 |