CHAPTER 11 ANSWER
KEY

1 
Analysis of variance 
2 
Means 
3 
two 
4 
T 
5 
sample; population 
6 
One 
7 
T 
8 
Factor 
9 
one IV; one DV; and independent samples 
10 
Number of speeding violations 
11 
within subjects 
12 
all 
13 
The three populationsone for each GPS output modalitylead to the
same mean number of speeding violations;
Ho: m1
= m2 =
m3 
14 
at least two 
15 
sums of squares; mean square 
16 
3 
17 
30 
18 
within groups 
19 
2.5 
20 
F 
21 
F 
22 
4 
23 
No 
24 
equal population variances 
25 
Ho: s12
= s22 = s32 
26 
failtoreject 
27 
T 
28 
Eliminate outliers; transform the data; use a different test procedure 
29 
don't 
30 
how large the samples should be 
31 
means; 1; 1 
32 
F 
33 
F 
34 
5 
35 
13.005 
36 
10 (including the plevel) 
37 
2, 57 
38 
larger 
39 
c (it was unaffected by Bonferroni) 
40 
a (it got larger) 
41 
T 