15.44 Interpret the results.

Refer to Exercises 15.39 and 15.40. The ratings for this study were each measured on a 7-point scale, anchored by bad-good, low quality-high quality, unappealing-appealing, and unpleasant-pleasant. The results presented were averaged over three ads for different products: a bank, women’s clothing, and a health care plan. Write a short report summarizing the Normality assumption for two-way ANOVA and the extent to which it is reasonable for the analysis of these data.