A chi-square test for independence has df = 2. What is the total number of categories (cells in the matrix) that were used to classify individuals in the sample?
A) two
B) three
C) four
D) six
Question 2
With = .05 and df = 8, the critical values for a two-tailed t test are t = 2.306. Assuming all other factors are held constant, if the df value were increased to df = 20, what would happen to the critical values for t?
A) They would increase (move farther from zero).
B) They would decrease (move closer to zero).
C) They would stay the same.
D) There is not enough information to answer.
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