Answer
$F_0=6.10$ with a P-value $\ltα$. Reject the null hypothesis.
There is enough evidence to cocnclude that the mean LDL cholesterol levels are not equal.
Work Step by Step
In MINITAB, enter the Saturated Fat values in C1, the Mediterranean values in C2 and in C3 enter the NCEP-1 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.
$F_0=6.10$ with a P-value $=0.005\ltα=0.05$
