An auto rental firm is using 15 identical motors that are adjusted to run at a fixed speed to test 3 different brands of gasoline. Each brand of gasoline is assigned to exactly 5 of the motors. Each motor runs on 10 gallons of gasoline until it is out of fuel.

The following represents the total mileages obtained by the different motors

Test the hypothesis that the average mileage obtained is not affected by the type of gas used. Use the 5 percent level of significance.

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p-Values in a One-way ANOVA Sample 1 Sample 2 Sample 3 1 220 244 252 Start 2 251 235 272 3 226 232 250 4 246 242 238 5 260 225 256 Quit SSW M*(N-1) = 165.9667 The value of the f-statistic is 2.6009 The p-value is 0.1124 SSB M-1 = 431.6667