You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures: 43.9 84.3 60.1 90.6 52.5 52.9 47.5 42.9 65 43.7 57.7 Find the 90% confidence interval. Enter your answer as an open-interval (i.e., parentheses) accurate to two decimal places (because the sample data are reported accurate to one decimal place). 90% C.I. = Answer should be obtained without any preliminary rounding