question archive A sample of 240 observations is selected from a normal population with a population standard deviation of 26
Subject:StatisticsPrice: Bought3
A sample of 240 observations is selected from a normal population with a population standard deviation of 26. The sample mean is 15.
a. Determine the standard error of the mean. (Round your answer to 3 decimal places.)
c. Determine the 99% confidence interval for the population mean. (Round your answers to 3 decimal places.)