A marketing organization wishes to study the effects of four sales methods on weekly sales of a product. The organization employs a randomized block design in which three salesman use each sales method. The results obtained are given in Figure 12.8, along with the Excel output of a ran- domized block ANOVA of these data. DS SaleMeth a Test the null hypothesis Ho that no differences exist between the effects of the sales methods (treatments) on mean weekly sales. Set a = .05. Can we conclude that the different sales methods have different effects on mean weekly sales? b Test the null hypothesis Ho that no differences exist between the effects of the salesmen (blocks) on mean weekly sales. Set a = .05. Can we conclude that the different salesmen have different effects on mean weekly sales? c Use Tukey simultaneous 95 percent confidence intervals to make pairwise comparisons of the sales method effects on mean weekly sales. Which sales method(s) maximize mean weekly sales?
A marketing organization wishes to study the effects of four sales methods on weekly sales of a product. The organization employs a randomized block design in which three salesman use each sales method. The results obtained are given in Figure 12.8, along with the Excel output of a ran- domized block ANOVA of these data. DS SaleMeth a Test the null hypothesis Ho that no differences exist between the effects of the sales methods (treatments) on mean weekly sales. Set a = .05. Can we conclude that the different sales methods have different effects on mean weekly sales? b Test the null hypothesis Ho that no differences exist between the effects of the salesmen (blocks) on mean weekly sales. Set a = .05. Can we conclude that the different salesmen have different effects on mean weekly sales? c Use Tukey simultaneous 95 percent confidence intervals to make pairwise comparisons of the sales method effects on mean weekly sales. Which sales method(s) maximize mean weekly sales?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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