CASE 15.1 15.47 Discounts and expected prices.Case 15.1 (page 15-15) describes a study designed to determine how the frequency that a supermarket product is promoted at a discount and the

size of the dis-count affect the price that customers expect to pay for the product. In the exercises that followed, we examined the data for two levels of each factor.Table 15.2 gives the complete set of data.(a) Summarize the means and standard deviations in a table and plot the means. Summarize the main features of the plot.(b) Analyze the data with a two-way ANOVA. Report the results of this analysis.(c) Using your plot and the ANOVA results, prepare a short report explaining how the expected price depends on the number of promotions and the percent of the discount.