TABLE 10-18
As part of an evaluation program, a sporting goods retailer wanted to compare the downhill coasting speeds of four brands of bicycles. She took three of each brand and determined their maximum downhill speeds. The results are presented in miles per hour in the table below

-Referring to Table 10-18, the test is less sensitive to the assumption that the population of speeds has the same variance for the four brands because the sample sizes of the four brands are equal.

Question

TABLE 10-18
As part of an evaluation program, a sporting goods retailer wanted to compare the downhill coasting speeds of four brands of bicycles. She took three of each brand and determined their maximum downhill speeds. The results are presented in miles per hour in the table below
 
-Referring to Table 10-18, the test is less sensitive to the assumption that the population of speeds has the same variance for the four brands because the sample sizes of the four brands are equal.

Quizplus · Accepted Answer

When sample sizes of each group are equal, the test is less sensitive to the assumption of equal variances.

TABLE 10-18 As Part of an Evaluation Program, a Sporting Goods Retailer