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

33.6

30.3

47.4

5.5

37.9

32.2

34.5

12

18.5

53.4

41.2

Find the 99% confidence interval. Enter your answer as anopen-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.