A chemical engineer conducts an experiment to test the effects of gas flow rate (factor A) and liquid flow rate (factor B) on the gas film heat transfer coefficient (in Btu/hr ft2 ). Four levels of each factor are used in the study, and two replications are conducted at each combination of factor levels:
a. Is there evidence of a significant interaction between the two factors? Use .01.
b. Use .01 to test the hypothesis that gas flow rate has no effect on the heat transfer coefficient.
c. Use .01 to test the hypothesis that liquid flow rate has no effect on the heat transfer coefficient