A. Find the probability of a type I error. That is, find the probability that the test rejects Ho when in fact u=0.

B. Find the probability of a type II error when u =0.61. That is, find the probability that the test accepts Ho when in fact u =0.61.

C. Find the probability of a Type II error when u=1.

Heres what I got, pretty sure I did this wrong.

A. The probability of a type I error is 0.50.

B. 0.6005-.61/ (1/sqrt 15)= -0.036 so 1-.4840 = .52

C. 0.6005-1/ (1/sqrt15)= -1.54 so 1-.0618= .94