Find the critical value for different types of sample size and level of significance
A paired difference experiment yielded and pairs of observations. In each case described below, what is the rejection region for testing H_{0}: mean= 6 against H_{a}: mean >6. Utilize standard deviation = 8.1.
a) n_{D} = 43, a = 0.07 z> _
b) n_{D} = 29, a = 0.01
c) n_{D} = 9, a = 0.03 t >