Question: At the 5% significance level, test the hypothesis that each sales pitch led to equally consistent sales (i.e., revealed the same degree of variability in sales). Clearly indicate all the steps of your analysis and carry out all answers to the nearest thousandth. If necessary, the critical values may be interpolated from the relevant tables or from your computer.

Extra Credit #1 (Max 5 Points): For Q# I, at the 5% sig. level, show all the pairs of sales pitches that reveal a statistically significant difference in mean sales. What is the relevance of the result in Q#2 to Q#1. if any?