The body temperatures in degrees Fahrenheit of a sample of adults in one small town are: 99.2 97.2 97.7 99.7 98.6 96.5 97.4 99.8 98.1 Assume body temperatures of adults are normally distributed. Based on this data, find the 90% confidence interval of the mean body temperature of adults in the town. Enter your answer as an open-interval (i.e., parentheses) accurate to 3 decimal places. Assume the data is from a normally distributed population. 90% C. I. =