Assume that a sample is used to estimate a population mean μμ. Find the 99% confidence interval for a sample of size 70 with a mean of 15.6 and a standard deviation of 20.5. Enter your answer as an...

Assume that a sample is used to estimate a population mean μμ. Find the 99% confidence interval for a sample of size 70 with a mean of 15.6 and a standard deviation of 20.5. Enter your answer as anopen-interval(low, high)

99% C.I. =


Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.