Asked by Mikos
SAT scores are normally distributed with a mean of 500 and a standard deviation of 100. Using the formula for σM, what will σM be when
a. the sample size is 25
b. the sample size is 121, and
c. the sample size is 400?
a. the sample size is 25
b. the sample size is 121, and
c. the sample size is 400?