Statistics

p. 292, 4.

If the between-group is 242.22 and the within-group deviation is 106.33, what is the total deviation?

p. 295, 8

If MS bet = 100 and MS with =25, what is F?

p.314, 10

Examine the following ANOVA summary table

Source SS df MS F

Between 495.34 4 123.84 8.16

Within 682.56 45 15.17

Total 1177.90 49

a. How many groups were there in the study?

b. Assuming equal numbers of subjects per group, how many subjects were in each group?

c. What is the tabled critical value of F at the .01 level?

d. What level of confidence can you have in rejecting the null hypothesis? Conversely, if you reject the null hypothesis, what is the probability that you have made a Type 1error?

p. 312, 5

More students than not gain weight during their first year of college. A nutritionist wonders if this due to the type of food served in campus dining centers. She compares the number of pounds gained during the academic year by 10 randomly selected freshman in each three groups: lives and eats at home, lives on campus and eat in campus dining hall, lives in an apartment and prepares own meal. Here are the pounds gained by each student:

Eats at Home Eats in Campus Dining Prepares Own Meals

2 5 3

4 9 2

0 12 5

3 0 6

0 8 0

5 10 2

2 7 0

4 5 3

10 4 1

5 9 9

a. State the H0.

b. Prepare the ANOVA summary table of results.

c. Write the results in APA format.

p. 323, 5 (You will have completed the ANova portion in this assignment)

Exercise 5 in Module 25 examined freshmen weight gain due to where meals are eaten. Conduct a Turkey HSD at a = .05. Between which pair(s) does the source of statistical significant lie