1. If the alpha level is changed from a of 0.05 to a =0.01 what happens to the probability of type 1 error ?
2.Answer the following about power and type II error
1.the power of a test is 0.65, what is the probability of type II error ?
2.what happens to the probability of type II error as a power increases?
3. Researchers may draw incorrect conclusions about their research (as know as type 1 or type II) , which type of error is considered more serious and why?