Instruction 19-6A As Part of an Evaluation Program,a Sporting Goods Retailer Wanted

Short Answer

Instruction 19-6A
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 trials of each brand and determined their maximum downhill speeds.The results are presented in kilometres per hour in the table below.
-Referring to Instruction 19-6A,to use the chi-square critical value for the Kruskal-Wallis test,the sample size in each group has to be greater than ________.