1. It is of interest to determine whether there is any significant difference in mileage per gallon between gasolines A, B, C, and D. Design an experiment that uses four different drivers, four...

1. It is of interest to determine whether there is any significant difference in mileage per gallon between gasolines A, B, C, and D. Design an experiment that uses four different drivers, four different cars, and four different roads.

2. Suppose that in carrying out the experiment of Problem 16.16 the numbers of miles per gallon are as given in Table 16.29. Use analysis of variance to determine whether there are any differences at the 0.05 significance level. Use MINITAB to obtain the analysis of variance and use the p-values provided by MINITAB to test for any differences at the 0.05 significance level.