1 2 3 4 5
4.5 7.2 3.4 9.1 1.2
1.33 0.98 1.03 0.78 0.56
Which best describes the assumption of homogeneity of variance?

Homogeneity of variance is the assumption that the variances in the populatons are equal.
false
The populations are both normally distributed to the same degree.
false
The between and within population variances are approximately the same.
true
the variances in the populatons are equal.
When performing a one factor ANOVA (between subjects) it is important that each subject only provide a single value. If a subject were to provide more than one value the independence of each value would be lost and the test provided by an ANOVA not be valid.

True. When a subjects provides more than one data point the values are not independent therefore violating one of the assumptions of between-subjects ANOVA.
True
True
false
False
2
Compute variance to the nearest 1/100th
true
.93
0.01

(ch13onewayanova.gif)
Compute variance of the means to the nearest 1/100th .
.
true
9.72

If the MSE and MSB are approximately the same, it is highly likely that multiple groups represent more than 1 population.

False. Because there is no difference between MSE and MSB, the value points given by different groups all represent the same population (one distribution).
false
True
true
False
You want to make a strong case that the different groups you have tested represent multiple populations. Your case is most strong whenÉ

D. To make a strong case that the different groups you have tested represent different populations you would want to show that the group distributions are distinguishable. Populations are distinguishable when the amount of variance between groups is much higher than the amount of variance within the groups.
false
a. MSE/MSB is high
false
b. MSE/MSB = 1.
true
c. MSB/MSE is low.
true
d. MSB/MSE is high.
A t-distribution spans from -° to ° an f-distribution spans from 0 to °. Why canŐt an F- value be below 0?

a. F is defined as MSB/MSE. Since negative variance is impossible, an f score can never be negative.
false
a. MSB or MSE can never be a negative value
false
b. MSB is never less than 1
true
c. MSE is never less than 1
Consider an experiment in which there are 7 groups and within each group there are 15 participants. What are the degrees of freedom for the numerator (between) and for the denominator (within)?

C. k(number of groups)-1 = 6(between); N(Number of total participants)-k(within) = 98
false
a. 6,105
false
A. 105,6
false
6,98
true
98,6