Question

Refer to the accompanying data set of mean​ drive-through service times at dinner in seconds at two fast food restaurants. Construct a 99​% 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. LOADING... Click the icon to view the data on​ drive-through service times. Construct a 99​% confidence interval of the mean​ drive-through service times at dinner for Restaurant X.

Restaurant X   Restaurant Y
83   104
117   123
115   156
142   117
263   171
180   136
121   112
151   124
162   125
217   127
331   129
303   134
177   232
109   212
157   291
150   125
92   99
233   137
235   242
185   145
155   142
195   202
168   146
120   145
67   134
197   144
174   161
117   131
146   172
175   130
193   240
199   237
227   254
192   239
347   237
305   172
215   85
195   105
182   52
186   175
102   81
143   143
180   141
152   97
176   128
153   149
168   131
125   189
137   154
312   131

Answer 1

from the confidence interyal of restaurant X and Y we can say that restaurant Y take less time to serving dinner than restaurant X.

hii.. also i have type carefully data but please you can cross check. if you have any querry please ask by comment. please like the answer. thanks...