Question
Spilich et al. (1992) ran an experiment in which three groups of smokers participated in a...
Spilich et al. (1992) ran an experiment in which three groups of smokers participated in a driving simulation video game. The Active Smokers groups (AS) smoked immediately before the game but during it. The data follow, where the dependent variable is an adjusted score related to the number of collisions.
|
NON SMOKERS |
DELAYED SMOKERS |
ACTIVE SMOKERS |
|
15 |
7 |
3 |
|
2 |
0 |
2 |
|
2 |
6 |
0 |
|
14 |
0 |
0 |
|
5 |
12 |
6 |
|
0 |
17 |
2 |
|
16 |
1 |
0 |
|
14 |
11 |
6 |
|
9 |
4 |
4 |
|
17 |
4 |
1 |
|
15 |
3 |
0 |
|
9 |
5 |
0 |
|
3 |
16 |
6 |
|
15 |
5 |
2 |
|
13 |
11 |
3 |
|
n= 15 |
n=15 |
n=15 |
Questions
a. What are the values of each category mean? _________
b. What is the value of Grand Mean?______________
c. What is the value of the SSB?________________
d. What is the value of the SSW?_____________
e. What is the value of the dfB?______________
f. What is the value of the dfW?______________
g. What is the value of the MSW?______________
h. What is the value of MSB?_______________
i. What is the value of F?________________
Show your work here:
Homework Answers
Answer #1
We will use the following formulas to find the values given here. The calculation is done in Excel.
The excel calculation table is given below:
| Category Mean | ||||
| 9.933333333 | 6.8 | 2.333333333 | ||
| Grand Mean | 6.355555556 | |||
| df | SS | MS | F | |
| Between group | 42 | 992.6666667 | 23.63492063 | 0.617228565 |
| Within group | 2 | 29.1762963 | 14.58814815 |
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