A sample of 26 elements from a normally distributed populati

A sample of 26 elements from a normally distributed population is selected. The sample mean is 10 with a standard deviation of 4. The 95% confidence interval for the population mean (mu) is

9.846 to 10.154

6.000 to 14.000

8.462 to 11.538

8.384 to 11.616

Solution

8.384 to 11.616