Assume that a sample is used to estimate a population mean mu . Find the 90% confidence interval for a sample of size 40 with a mean of 59.4 and a standard deviation of 10.5. Enter your answer as an open-interval (i.e., parentheses) accurate to 3 decimal places.
90% C.I. =
The answer should be obtained without any preliminary rounding.
Assume that a sample is used to estimate a population mean . Find the 90% confidence interval for a sample of size 40 with a mean of 59.4 and a standard deviation of 10.5. Enter your answer as an open-interval (i.e., parentheses).accurate to 3 decimal places.
90%C.1.
The answer should be obtained without any preliminary rounding.