Decreasing the alpha level (for example from = .05 to = .01) ____. a Decreases the probability of a Type I error b Decreases the size of the critical region c Decreases the probability that the sample...

Decreases the probability of a Type I error

Decreases the size of the critical region

Decreases the probability that the sample will fall into the critical region

All of the other options are results of decreasing alpha.