6. In an analysis of variance, if SSb/t = 20 and MSb/t = 10, then there were _____ levels.

a. 1

b. 2

c. 3

d. Cannot be determined without additional information

7. Which of the following is not needed to calculate F-obs?(Hint:There may be more than one answer here!)

a. SS_total

b. SS_within

c. MS_total

d. df_within

8. In an ANOVA with three treatment conditions, x₁ = x₂ = x₃ . For these data, SS_betweenwould be ____________.

a. 3

b. 1

c. 0

d. Cannot be determined from the information given