You intend to estimate a population mean μμ with the following sample. 76.4 41.1 37.7 59.6 66.6 95.3 64 52.5 54.1 66.7 68.6 You believe the population is normally distributed. Find the 90% confidence...

You intend to estimate a population mean μμ with the following sample.

You believe the population is normally distributed. Find the 90% confidence interval. Enter your answer as anopen-interval (i.e., parentheses) accurate to twp decimal places (because the sample data are reported accurate to one decimal place).