(a) The dependent variable is gas mileage and the independent variables are the models of car.
(b) The population is all the car models.
(c) SSW means the sum of squares in the within group.
SSW = 149.04
(d) X = 20.04
SSB = 19.6
SSB means the sum of squares between groups.
(e) MSB = 9.8
MSW = 12.42
(f)
Source | SS | df | MS | F | p-value |
Treatment | 19.600 | 2 | 9.8000 | 0.79 | .4765 |
Error | 149.040 | 12 | 12.4200 | ||
Total | 168.640 | 14 |
(g) The p-value is 0.4765.
Since the p-value (0.4765) is greater than the significance level (0.05), we fail to reject the null hypothesis.
Therefore, we cannot conclude that there is a difference between means.
6. You are interested in buying a car that gives good gas mileage. You have narrowed...
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