Alexandria believes that for city driving, the fuel economy…

Written by Anonymous on May 12, 2026 in Uncategorized with no comments.

Questions

Alexаndriа believes thаt fоr city driving, the fuel ecоnоmy of compact, midsize, and large cars are the same. The gas mileages (in miles per gallon) for city driving for several randomly selected cars from each category are shown in the table at the right. Assume that the populations are normally distributed, the samples are independent, and the population variances are equal. At α = 0.05, can you reject the claim that the mean gas mileages for city driving are the same for the three categories? Compact Midsize Large 12 21 18 23 23 17 17 19 15 20 14 17 25 14 20 18 21 17 24 26 17 27 18 13 29 25 17 16 31 27 24 22 24 21 25 21 Just verify the 4 conditions that must be met for an ANOVA test.  Do not perform the full hypothesis test. 

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