Answer
Interaction P-value $=0.812$. Do not reject the null hypothesis.
There is not enough evidence to conclude that there is an interaction between factor A and factor B.
Work Step by Step
$H_0:$ there is no interaction between factor A and factor B.
versus
$H_1:$ there is an interaction between factor A and factor B.
In MINITAB 18, enter the data according to the table below.
Select Stat -> ANOVA -> General Linear Model -> Fit General Linear Model
In Responses enter C3 (Response variable). In Factors enter C1 (Factor A) C2 (Factor B).
Click Model. In Factors and covariates highlight both Factor A and Factor B. Click Add (to the right of Interactions through order). 'Factor A'*'Factor B' will appear in 'Terms in the model'. Click OK.
Click Ok.
The interaction P-value $=0.8125$
