A researcher must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures: 33.3 54.1 34.4 12.6 24.2 40.2 42.1 Assuming the population of temperatures are normally distributed, find the 80% confidence interval. Round the answers to two decimal places. Enter your answer as an interval of the form (LB, UP). The researcher is 80% confident that the population average temperature is within the temperature interval