A researcher investigated the effects of color of a website background on consumer behavior. Three website colors were tested: blue, red, and yellow. In addition, the type of product being purchased...

A researcher investigated the effects of color of a website background on consumer behavior. Three website colors were tested: blue, red, and yellow. In addition, the type of product being purchased was compared: The websites either contained sports equipment or books. The amount each individual purchased on the website they saw was measured. Overall, yellow websites resulted in larger purchase amounts than the other colors, but the color effect was only present for books. No color effect was present for sports equipment sites. According to this description, which of the following were significant in the ANOVA?

a. The main effect of website color

b. The main effect of type of product

c. The interaction between website color and type of product

d. Both (a) and (b)

e. Both (a) and (c)