How many standard deviations (of X) below the null value is x 5 72.3? b. If x 5 72.3, what is the conclusion using a 5 .002? c. For the test procedure with a 5 .002, what is b(70)? d. If the test procedure with a 5 .002 is used, what n is necessary to ensure that b(70) 5 .01? e. If a level .01 test is used with n 5 100, what is the probability of a type I error when m 5 76?