1. With an unknown population standard deviation and a sample size of n=10 for a confidence interval of 95% , we would use an a/2 value of _______?

A.	1.960
B.	2.800
C.	2.228
D.	1.822

2. Give the Null and Alternative hypothesis

Ho : U(1) = U(2)

Ha : U(1) does not = U(2)

we would reject Ho if t|stat| > t|critical or if t|stat| < - t|critical| True or False?