The difference among means of groups is ordinarily tested by
A) multiple correlations and multiple regressions.
B) multiple regressions and bivariate predictions.
C) analysis of variance and t tests.
D) t tests and bivariate correlations.
Question 2
Using the mean to indicate centrality on a distribution of income scores
usually results in
a. a false image of poverty
b. an accurate portrayal of income
c. a false image of prosperity
d. income scores never lend themselves to centrality