B babygirl1501 New member Joined Jul 1, 2010 Messages 13 Sep 30, 2010 #1 When you have a population mean of 23 for two different sample size, why is it more appropriate to use a t-test rather then a z-test?
When you have a population mean of 23 for two different sample size, why is it more appropriate to use a t-test rather then a z-test?