# A) Construct the indicated confidence interval for the population mean mu using

A) Construct the indicated confidence interval for the population mean mu using the t-distributionc=0.95, x-overbar=12.7, s=2.0, n=9The 95% confidence interval using a t-distribution is ( , )B) A population has a mean mu=84 and a standard deviation sigma=28. Find the mean and standard deviation of a sampling distribution of sample means with sample size n=49.mu-x= Sigma-x=