In an experiment in which H₁ is nondirectional, and the state of reality is such that the probability of a plus = 0.50, the probability of making a Type II error is ____.

If the null hypothesis is false, the probability of making a correct decision is given by ____.

beta

alpha

1 - alpha

power

If H₁ is nondirectional and the size of the effect of the independent variable decreases, the probability of making a Type I error ____.

equals zero

decreases

need more information

increases

1

need more information

0

1 - alpha

If p(A)p(B|A) = p(A)p(B), then A and B must be ____.

random

exhaustive

mutually exclusive

independent

Using the sign test, if the null hypothesis is false, then P (the probability of a plus) ____.

is not equal to 0.50

equals beta

equals alpha

equals 0.50