The high temperatures (in degrees Fahrenheit) of a random sample of 8 small towns are:

96.7, 97.1, 98.8, 99.2, 96.8, 97.7, 97.3, 97.5

Assume high temperatures are normally distributed. Based on this data, find the 80% confidence interval of the mean high temperature of towns. 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).

80% C.I. =

Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.