Answer
$F_0=0.399$ with a P-value $\gtα$. Reject the null hypothesis.
There is not enough evidence to conclude that the mean head injury for each vehicle type is not the same.
Work Step by Step
In MINITAB, enter the Large Family Cars values in C1, the Passenger Vans values in C2 and in C3 enter the Midsize Utility Vehicles values.
Select Stat -> ANOVA -> One-Way
Select Response data are in a separate column for each factor level.
In Responses enter C1 C2 C3
Click Ok.
$F_0=0.399$ with a P-value $=0.6770\gtα=0.01$
