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Refer to the accompanying data set of mean? drive-through service times at dinner in seconds at...

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Question

Basic Math

Refer to the accompanying data set of mean? drive-throughservice 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 thesame 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

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