Answer
$µ_{NS}\neµ_{LS}\neµ_{HS}$
There is enough evidence to cocnlude that the mean resting heart rate for Nonsmokers is less than the mean resting heart rate for Light Smokers and that the mean resting heart rate for Light Smokers is less than the mean resting heart rate for Heavy Smokers.
Work Step by Step
In MINITAB, enter the Nonsmokers values in C1, the Light Smokers values in C2 and in C3 enter the Heavy Smokers 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 Comparisons. In "Error rate for comparisons" enter 5. In "Comparison procedures assuming equal variances" select Tukey. In "Results" select the 3 options. Click OK.
Click Ok.
