Can we conclude from these data that the three types of anesthesia, on the average, have different effects?

Problem 21:

Can we conclude from these data that the three types of anesthesia, on the average, have different effects? Let $\alpha=.05$.

A	B	C
0.28	0.20	1.23
0.50	0.38	1.34
0.68	0.50	0.55
0.27	0.29	1.06
0.31	0.38	0.48
0.99	0.62	0.68
0.26	0.42	1.12
0.35	0.87	1.52
0.38	0.37	0.27
0.34	0.43	0.35

Problem 22:

The aim of a study by Hartman-Maier et al. (A-33) was to evaluate the awareness of deficit profiles among stroke patients undergoing rehabilitation. She studied 35 patients with a stroke lesion in the right hemisphere and 19 patients with a lesion on the left hemisphere. She also grouped lesion size as

$2=1-3 \mathrm{~cm}, 3=3-5 \mathrm{~cm} \text {, and } 4=5 \mathrm{~cm} \text { or greater. }$

One of the outcome variables was a measure of each patient's total unawareness of their own limitations. Scores ranged from 8 to 24 , with higher scores indicating more unawareness.

Test for a difference in lesion size, hemisphere, and interaction. Let $\alpha=.05$

Problem 24:

The following table shows the aggression scores of 30 laboratory animals reared three different conditions. One animal from each of 10 Litters was randomly assig each of the three rearing conditions.

Problem 28:

Consider the following ANOVA table.