Evaluate the equality of variance assumption for the analysis of Problem 8.1 (the data are in Table D-18, Appendix D). If there is a problem, try to stabilize the variances. If successful in...

Evaluate the equality of variance assumption for the analysis of Problem 8.1 (the data are in Table D-18, Appendix D). If there is a problem, try to stabilize the variances. If successful in stabilizing the variances, reanalyze the data. Do your conclusions change? If not successful, what do you do next?

Table D-18