Use available computer software to carry out the analysis in Problem XXXXXXXXXXdata in Table XXXXXXXXXXfor the one-factor completely randomized design. Problem 13.14 Four types of advertising displays...

Use available computer software to carry out the analysis in Problem 13.14 (data in Table 13.15) for the one-factor completely randomized design.

Problem 13.14

Four types of advertising displays were set up in 12retail outlets, with three outlets randomly assigned to each of the displays, for the purpose of studying the point-of-sale impact of the displays. With reference to Table 13.15, test the null hypothesis that there are no differences among the mean sales values for the four types of displays, using the 5 percent level of significance.