The body temperatures in degrees Fahrenheit of a sample of adults in one small town are: 97 99.1 99.2 97.8 96.7 96.6 98.9 97.1 97.7 99.7 99.9 98.1 Assume body temperatures of adults are normally distributed. Based on this data, find the 80% confidence interval of the mean body temperature of adults in the town. Enter your answer as an open-interval (j.e., parentheses) accurate to 3 decimal places. Assume the data is from a normally distributed population. 80% C.I. = Calculator