A researcher with the Ministry of Transportation is commissioned to study the drive times to work (one-way) for U.S. cities. The underlying hypothesis is that average commute times are different across cities. To test the hypothesis, the researcher randomly selects six people from each of the four cities and records their one-way commute times to work. Refer to the below data on one-way commute times (in minutes) to work. Note that the grand mean is 36.625. Houston Charlotte Tucson Akron 45 25 25 10 65 30 30 15 105 35 19 15 55 10 30 10 85 50 10 90 70 35 10 74.167 36.667 24.833 10.833 s 524.167 436.667 82.167 14.167 The competing hypotheses about the mean commute times are

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A researcher with the Ministry of Transportation is commissioned to study
the drive times to work (one-way) for U.S. cities. The underlying hypothesis
is that average commute times are different across cities. To test the
hypothesis, the researcher randomly selects six people from each of the
four cities and records their one-way commute times to work. Refer to the
below data on one-way commute times (in minutes) to work. Note that the
grand mean is 36.625.
Houston
Charlottě
Tucson
Akron
45
25
25
10
65
30
30
15
105
35
19
15
es
55
10
30
10
85
50
10
90
70
35
10
74.167
36.667
24.833
10.833
s 524.167
436.667
82.167
14.167
The competing hypotheses about the mean commute times are
Multiple Choice
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ill
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Transcribed Image Text:A researcher with the Ministry of Transportation is commissioned to study the drive times to work (one-way) for U.S. cities. The underlying hypothesis is that average commute times are different across cities. To test the hypothesis, the researcher randomly selects six people from each of the four cities and records their one-way commute times to work. Refer to the below data on one-way commute times (in minutes) to work. Note that the grand mean is 36.625. Houston Charlottě Tucson Akron 45 25 25 10 65 30 30 15 105 35 19 15 es 55 10 30 10 85 50 10 90 70 35 10 74.167 36.667 24.833 10.833 s 524.167 436.667 82.167 14.167 The competing hypotheses about the mean commute times are Multiple Choice raw ill < Prev 9 of 18 Next >
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