You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures: 87.8 81.8 90 79.1 81.6 75.5 92.4 84.1 76.5 78.9 78.9 84.9 Find the 80% confidence interval. Enter...

You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures:

Find the 80% confidence interval. Enter your answer as an
open-interval
(i.e., parentheses) accurate to 3 decimal places. Assume the data is from a normally distributed population.