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

46.1

20.7

23

50.5

14.2

20.8

-2.6

6.4

25.5

18.5

16

Find the 99% 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). 99% C.I. = Answer should be obtained without any preliminary rounding.