A chemical engineer is studying the effects of temperature and catalyst on the percentage of undesired byproduct in the output of a chemical reactor. Orders of testing were determined using random numbers. Percentage of the byproduct is shown in the table below. Temperature, °C Catalyst 140 150 #1 2.3 1.6 1.3 2.8 #2 3.6 3.0 3.4 3.8 The diagnostic plots recommended in part (c) of section 12.1 were carried out and showed no significant discrepancies. Can we conclude (at the 5% level of significance) that catalyst or temperature or their interaction affects the percentage of byproduct?