1). In a simple bivariate regression with 60 observations there will be ____ residuals
A) 60
B) 59
C) 58
D) 57
2). Which is not an assumption of unreplicated two factor ANOVA (randomized block)
A) Normality of the population
B) Homogenuous variances
C) Additive treatment effects
D) There is factor interaction
3). Degrees of freedom for t he between-group variation in a one factor Anova with n1=5, n2=6, n3=7 would be
A) 18
B) 17
C) 6
D) 2
4). A news network stated that a study had found a positive correlation between the number of children a worker has and his or her earnings last year. You may conclude that
A) people should have more children so they can get better jobs.
B) the data are erroneous because the correlation should be negative.
C) causation is in serious doubt.
D) statisticians have small families.