Part A
As for the Week 8 discussion, please write your advice of at least 100 words for the future Statistics200 students – telling them what you have done well and what you wish that you had done more in this class, and why your advice is important for them to succeed in this course.
Part B. Show all your workings please. You are to choose the best three you know and can do very well. Please show workings and explained in full details
 If an experiment is conducted with 5 conditions and 6 subjects in each condition, what are dfn and dfe?
 How is the mean square computed from the sum of squares?
Use the following information to answer the next three exercises. Suppose a group is interested in determining whether teenagers obtain their drivers licenses at approximately the same average age across the country. Suppose that the following
724 CHAPTER 13  F DISTRIBUTION AND ONEWAY ANOVA
data are randomly collected from five teenagers in each region of the country. The numbers represent the age at which teenagers obtained their drivers licenses.

Northeast 
South 
West 
Central 
East 

16.3 
16.9 
16.4 
16.2 
17.1 

16.1 
16.5 
16.5 
16.6 
17.2 

16.4 
16.4 
16.6 
16.5 
16.6 

16.5 
16.2 
16.1 
16.4 
16.8 
x ̄ = 
________ 
________ 
________ 
________ 
________ 
s2 = 
________ 
________ 
________ 
________ 
________ 
Table 13.20
H0: μ1 = μ2 = μ3 = μ4 = μ5
Hα: At least any two of the group means μ1, μ2, …, μ5 are not equal.
 F statistic = ________
 A researcher wants to know if the mean times (in minutes) that people watch their favorite news station are the same. Suppose that Table 13.24 shows the results of a study.
CNN 
FOX 
Local 
45 
15 
72 
12 
43 
37 
18 
68 
56 
38 
50 
60 
23 
31 
51 
35 
22 

Table 13.24
Assume that all distributions are normal, the four population standard deviations are approximately the same, and the data were collected independently and randomly. Use a level of significance of 0.05.
 Are the mean number of times a month a person eats out the same for whites, blacks, Hispanics and Asians? Suppose that Table 13.26 shows the results of a study.
White 
Black 
Hispanic 
Asian 
6 
4 
7 
8 
8 
1 
3 
3 
2 
5 
5 
5 
4 
2 
4 
1 
6 

6 
7 
Table 13.26
Assume that all distributions are normal, the four population standard deviations are approximately the same, and the data were collected independently and randomly. Use a level of significance of 0.05.