Random samples of four different models of cars were selected and the gas mileage of each car was measured. The results are shown below. TTTT Model A Model B Model C Model D 23 28 30 25 25 26 28 26 24 29 32 25 26 30 27 28 Test the claim that the four different models have the same population mean. Use a significance level of 0.05. ΑNOVA TABLE SS df MS Factor 55.5 Error Total 90

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Random samples of four different models of cars were selected and the gas mileage of each car
was measured. The results are shown below.
TTT
Model A Model B Model C Model D
23
28
30
25
25
26
28
26
24
29
32
25
26
30
27
28
Test the claim that the four different models have the same population mean. Use a significance
level of 0.05.
ANOVA TABLE
SS
df
MS
F
Factor
55.5
Error
Total
90
Transcribed Image Text:Random samples of four different models of cars were selected and the gas mileage of each car was measured. The results are shown below. TTT Model A Model B Model C Model D 23 28 30 25 25 26 28 26 24 29 32 25 26 30 27 28 Test the claim that the four different models have the same population mean. Use a significance level of 0.05. ANOVA TABLE SS df MS F Factor 55.5 Error Total 90
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