Answer
$F_0=1.24$ with a P-value $\ltα$. Do not reject the null hypothesis.
We can not conclude that at least one population mean is different from the others.
Work Step by Step
$H_0:µ_{Marriott}=µ_{Hyatt}=µ_{Sheraton}$ versus
$H_1:$ at least one population mean is different from the others.
In MINITAB, enter the data according to the table below.
Select Stat -> ANOVA -> General Linear Model -> Fit General Linear Model
In Responses enter C3. In Factores enter C1 C2.
Click Ok.
$F_0=1.24$ with a P-value $=0.329\ltα=0.05$