QUESTION 1

1. You carried out an ANOVA on a preliminary sample of data. You then collected additional data from the same groups; the difference being that the sample sizes for each group were increased by a factor of 10, and the within-group variability has decreased substantially. Which of the following statements is NOT correct.

a. The degrees of freedom associated with the error term has increased

b .F has changed

c. SSE has decreased

d. The degrees of freedom associated with the treatment term has increased

QUESTION 2

1. A hotel chain has four hotels in Oregon.The general manager is interested in determining whether the mean length of stay is the same or different for the four hotels.She selects a random sample of n = 20 guests at each hotel and determines the number of nights they stayed.Assuming that she plans to test this using an alpha level equal to 0.05, which of the following is the correct criticalvalue?

a t = 1.9917

b F = 3.04

c F = 2.56

d F = 2.76