SCENARIO 11-3
As part of an evaluation program,a sporting goods retailer wanted to compare the downhill coasting speeds of 4 brands of bicycles.She took 3 of each brand and determined their maximum downhill speeds.The results are presented in miles per hour in the table below.

-Referring to Scenario 11-3,based on the Tukey-Kramer procedure with an overall level of significance of 0.05,the retailer would decide that the mean speed for the Tornado brand is significantly different from each of the mean speeds for other brands.

Question

SCENARIO 11-3
As part of an evaluation program,a sporting goods retailer wanted to compare the downhill coasting speeds of 4 brands of bicycles.She took 3 of each brand and determined their maximum downhill speeds.The results are presented in miles per hour in the table below.
  
-Referring to Scenario 11-3,based on the Tukey-Kramer procedure with an overall level of significance of 0.05,the retailer would decide that the mean speed for the Tornado brand is significantly different from each of the mean speeds for other brands.

Quizplus · Accepted Answer

The Tukey-Kramer procedure is used to determine significant differences between means in a multiple comparison setting, and it controls for Type I error rate. Based on the test results, if the p-value for the comparison between the Tornado brand and other brands is less than 0.05, then the mean speed for the Tornado brand is significantly different from at least one of the other brands. Therefore, the statement is true.

SCENARIO 11-3 As Part of an Evaluation Program,a Sporting Goods Retailer Wanted