statistics
posted by amy on .
Help!!!!!!
A confidence interval estimate for the population mean is given to be (39,90, 48.11) If the standard deviation is 11.473 and the sample size is 52 determine the maximum error of the estimate. determine the confidence level used for the given confidence interval

What level of confidence are you talking about?
??% confidence interval = mean ± ?? SEm
SEm = SD/√n