2/1/2008

Comparing Two Population Means

• Comparison of SAS and Minitab (see plastic.sas)
• See p. 476 for d.f. for Satterthwaite's test statistic

Assessing Normality (Normal probability plots with SAS)

Comparing Two Populations Medians

• Wilcoxon rank sum procedure

Comparing Two Population Proportions

• Large sample z test
• Exercise 11.44 on p. 516