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 results. E 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. O sec

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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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.
E 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.
O sec <u<O sec
(Round to one decimal place as needed.)
Construct a 99% confidence interval of the mean drive-through service times at dinner for Restaurant Y.
O sec <u<O sec
(Round to one decimal place as needed.)
Compare the results.
O A. The confidence interval estimates for the two restaurants overlap, so it appears that Restaurant Y has a faster mean service time than
Restaurant X.
O B. The confidence interval estimates for the two restaurants do not overlap, so there does not appear to be a significant difference
between the mean dinner times at the two restaurants.
OC. The confidence interval estimates for the two restaurants overlap, so there does not appear to be a significant difference
between the mean dinner times at the two restaurants.
O D. The confidence interval estimates for the two restaurants do not overlap, so it appears that Restaurant Y has a faster mean service time
than Restaurant X.
Restaurant Drive-Through Service Times
Service Times (seconds)
Restaurant X
Restaurant Y
86
122
115
144
262
106
131
151
111
176
182
123
152
163
213
134
113
128
131
125
332
310
178
109
152
128
137
231
215
291
145
98
235
238
181
132
91
135
244
143
149
199
168
117
65
140
197
154
147
141
200
176
120
137
172
150
157
135
171
132
191
202
228
199
347
237
234
249
237
234
308
207
195
180
192
171
85
108
54
173
107
151
178
156
174
73
147
138
103
130
Click to select your answer(s).
161
170
126
138
307
149
131
185
144
128
nint
Dena
Transcribed Image Text: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. E 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. O sec <u<O sec (Round to one decimal place as needed.) Construct a 99% confidence interval of the mean drive-through service times at dinner for Restaurant Y. O sec <u<O sec (Round to one decimal place as needed.) Compare the results. O A. The confidence interval estimates for the two restaurants overlap, so it appears that Restaurant Y has a faster mean service time than Restaurant X. O B. The confidence interval estimates for the two restaurants do not overlap, so there does not appear to be a significant difference between the mean dinner times at the two restaurants. OC. The confidence interval estimates for the two restaurants overlap, so there does not appear to be a significant difference between the mean dinner times at the two restaurants. O D. The confidence interval estimates for the two restaurants do not overlap, so it appears that Restaurant Y has a faster mean service time than Restaurant X. Restaurant Drive-Through Service Times Service Times (seconds) Restaurant X Restaurant Y 86 122 115 144 262 106 131 151 111 176 182 123 152 163 213 134 113 128 131 125 332 310 178 109 152 128 137 231 215 291 145 98 235 238 181 132 91 135 244 143 149 199 168 117 65 140 197 154 147 141 200 176 120 137 172 150 157 135 171 132 191 202 228 199 347 237 234 249 237 234 308 207 195 180 192 171 85 108 54 173 107 151 178 156 174 73 147 138 103 130 Click to select your answer(s). 161 170 126 138 307 149 131 185 144 128 nint Dena
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