Question

19.5
.5. In a two-factor study, the treatment means ij are as follows: Factor B Factor A 250 288 B2 265 273 B3 268 270 B4 269 269 a. Obtain the factor B main effects. What do your results imply about factor B? b. Prepare a treatment means plot and determine whether the two factors interact. How can you tell that interactions are present? Are the interactions important or unimportant? c. Make a logarithmic transformation of the μ¡j and plot the transformed values to ex- plore whether this transformation is helpful in reducing the interactions. What are your findings?

Answer 1