Normal Distribution on the TI89 using Statistics Made Easy

Read below please: ex1. What is the probability of obtaining a sample mean greater than M=60 for a random sample of n=16 scores selected from a normal population with a mean of 65 and a standard deviation of 20? Go To F3 7 and select Normal distribution, enter mu=65 std dev=20/sqrt(16)=20/4 = 5 so just… (read more)