4/1/2013

Homogeneity of variances (see Chpt7 Sec 7.1.PPT)

• Levene's test

Multiple Comparisons (see Chpt7 Sec 7.2.PPT)

Contrasts (see Chpt7 Sec 7.3.PPT)

• Estimation
• Inference

Nonparametric ANOVA (see Chpt7 Sec 7.4.PPT)

• The average time it took baseball players to run from a point on the first base line to a point just short of second base is recorded for three different methods (round out, narrow angle, and wide angle). Use the data in p:\data\math\hartlaub\dataanalysis\baseball.csv to see if there is a significant difference in these three methods. What method would you recommend?

Please read Sections 7.3 through 7.5 for class on Wednesday.