Suddenly, a fourth candidate Oliver Neuman - becomes a major contender in the race at the eleventh hour! Repeat Question 1 (Steps A through J) adding a fourth group containing the new data on his likely voters.

Median Household Income (Neuman)

23444

27384

19203

21028

30238

27332

18938

37293

STEP A: Calculate, c, the number of groups.

STEP B: Calculate, , the number of observations for each group, j.

STEP C: Calculate the mean value for each group, .

STEP D: Calculate the grand mean, .

STEP E: Calculate the degrees of freedom for:

• SST: Total Sum of Squares
• SSA: Among Group Variation
• SSW: Within Group Variation

STEP F: Calculate:

• SST: Total Sum of Squares
• SSA: Among Group Variation
• SSW: Within Group Variation

STEP G: Calculate:

• MSA: Mean Square Among
• MSW: Mean Square Within

STEP H: What is the Significance of the F-Stat? How do you interpret the F-Stat?

STEP I: Complete a One-Way ANOVA Table

ANOVA
	d.f.	SS	MS	F	p-value
Among Groups
Within Groups
Total

STEP J: Calculate the Tukey-Kramer Critical Range?