单项选择题
If a test of hypothesis has a Type I error probability (
) of 0.01, we mean
A. if the null hypothesis is true, we reject it 1% of the time.
B.if the null hypothesis is true, we don't reject it 1% of the time.
C.if the null hypothesis is false, we don't reject it 1% of the time.
D. if the null hypothesis is false, we reject it 1% of the time.