Table gives the miles per gallon for 4 different octanes of gasoline for 5 days. Assume that the miles per gallon for each octane is normally distributed with equal variance. Should the hypothesis of equal population means be accepted or rejected at the 5% level of significance?
Table 5.35 Miles per Gallon with 4 Types of Gasoline for 5 Days
|
Type 1
|
Type 2
|
Type 3
|
Type 4
|
|
12
|
12
|
16
|
17
|
|
11
|
14
|
14
|
15
|
|
12
|
13
|
15
|
17
|
|
13
|
15
|
13
|
16
|
|
11
|
14
|
14
|
18
|