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 σ=62.2 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. Service Times 90 156 113 175 101 73
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 σ=62.2 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.
Service Times
90
156
113
175
101
73
314
151
139
184
276
144
102
138
102
155
185
110
104
256
277
190
275
228
106
80
300
116
323
110
185
165
148
179
172
301
115
151
264
255
235
238
151
266
221
300
127
109
139
118
126
= /=
Compute the test statistic.
x^2=
(round to two decimal places as needed)
Find the P-value of the test statistic is __.
(round to three decimal places as needed)
is, not rejected
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