Chapter 13, Problem 66H

Use the following information to answer the next two exercises. Table 13.23 lists the number of pages in four different

types of magazines.

home decorating	news	health	computer
172	87	82	104
286	94	153	136
163	123	87	98
205	106	103	207
197	101	96	146

Table 13.23

Using a significance level of 5%, test the hypothesis that the four magazine types have the same mean length.