Solution Found!
use the Kruskal - Wallis test with the data
Chapter 13, Problem 9 BSC(choose chapter or problem)
Problem 9BSC
use the Kruskal - Wallis test with the data set from Appendix B.
IQ and Lead Exposure Data Set in Appendix B lists performance IQ scores for random samples of subjects with blood lead levels categorized as low, medium, and high. Use a 0.01 significance level to test the claim that subjects in those categories have the same median performance IQ score. Does lead exposure appear to have an adverse effect?
Mile 1 3:15 3:24 3:23 3:22 3:21
Mile 2 3:19 3:22 3:21 3:17 3:19
Mile 3 3:34 3:31 3:29 3:31 3:29
Questions & Answers
QUESTION:
Problem 9BSC
use the Kruskal - Wallis test with the data set from Appendix B.
IQ and Lead Exposure Data Set in Appendix B lists performance IQ scores for random samples of subjects with blood lead levels categorized as low, medium, and high. Use a 0.01 significance level to test the claim that subjects in those categories have the same median performance IQ score. Does lead exposure appear to have an adverse effect?
Mile 1 3:15 3:24 3:23 3:22 3:21
Mile 2 3:19 3:22 3:21 3:17 3:19
Mile 3 3:34 3:31 3:29 3:31 3:29
ANSWER:
Solution 9BSC
The value of the test statics is computed by using Minitab as,