PSY 555 Homework 12



Chapter 8: #1,3,7,8,9,15


1.   Describe, in words, alpha, beta, and power.


2.   State five ways you can increase power.


3.   A population has a m=20 and s=5.  We have obtained a sample with a  and sd=3 and want to test to see if it came from this population.  If we conduct a one-tailed test with a=.05, what is b?