# Lecture 13: Comparisons and Linear Contrasts

We discuss how to make a pairwise comparison between groups using the pooled standard
deviation estimate from the overall ANOVA, how to set up and carry out a linear contrast,
and the difference between different possible weighting schemes in a linear contrast.
Then we went over random effects for One-Way ANOVA.
We used the data for the percent of women in the jury pool for various judge's:
PERCENT JUDGE
6.40 SPOCK'S
8.70 SPOCK'S
13.30 SPOCK'S
13.60 SPOCK'S
15.00 SPOCK'S
15.20 SPOCK'S
17.70 SPOCK'S
18.60 SPOCK'S
23.10 SPOCK'S
16.80 A
30.80 A
33.60 A
40.50 A
48.90 A
27.00 B
28.90 B
32.00 B
32.70 B
35.50 B
45.60 B
21.00 C
23.40 C
27.50 C
27.50 C
30.50 C
31.90 C
32.50 C
33.80 C
33.80 C
24.30 D
29.70 D
17.70 E
19.70 E
21.50 E
27.90 E
34.80 E
40.20 E
16.50 F
20.70 F
23.50 F
26.40 F
26.70 F
29.50 F
29.80 F
31.90 F
36.20 F