The accompanying data are​ drive-through service times​ (seconds) recorded at a fast food restaurant during dinner times. Assuming that dinner service times at the​ restaurant's competitor have standard deviation sigma equals 59.1 ​sec, use a 0.05 significance level to test the claim that service times at the restaurant have the same variation as service times at its​competitor's restaurant. Use the accompanying data to identify the null​ hypothesis, alternative​ hypothesis, test​ statistic,and​ P-value. Then state a conclusion about the null hypothesis.   a. Compute the test statistic. chi squared equals. ​(Round to two decimal places as​ needed.)   b.Find the​ P-value of the test statistic.   The​ P-value of the test statistic is ​(Round to three decimal places as​ needed.)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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The accompanying data are​ drive-through service times​ (seconds) recorded at a fast food restaurant during dinner times. Assuming that dinner service times at the​ restaurant's competitor have standard deviation sigma equals 59.1 ​sec, use a 0.05 significance level to test the claim that service times at the restaurant have the same variation as service times at its​competitor's restaurant. Use the accompanying data to identify the null​ hypothesis, alternative​ hypothesis, test​ statistic,and​ P-value. Then state a conclusion about the null hypothesis.

 

a. Compute the test statistic.
chi squared equals. ​(Round to two decimal places as​ needed.)
 
b.Find the​ P-value of the test statistic.
 
The​ P-value of the test statistic is
​(Round to three decimal places as​ needed.)
Service Times (in minutes)
89
167
101
346
198
138
106
137
116
123
185
211
271
183
279
157
134
116
166
164
142
116
217
108
107
140
167
113
231
328
192
138
182
109
188
124
275
285
182
136
98
296
341
187
100
187
181
251
189
113
134
Transcribed Image Text:Service Times (in minutes) 89 167 101 346 198 138 106 137 116 123 185 211 271 183 279 157 134 116 166 164 142 116 217 108 107 140 167 113 231 328 192 138 182 109 188 124 275 285 182 136 98 296 341 187 100 187 181 251 189 113 134
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