1. z = -4.00; Reject Ho
2. z = 3.33; Reject Ho
3. Same as #2 except that t test is used.
4. A. Type 1
B. None
C. None
D. Typpe II
5. A. Both
B. Upper
C. Lower
6. A. Same (alpha is same)
B. Rowe--larger sample, lower Beta, lower standard error
C. Null--1 - Beta is equal to Power.