ch. 8 confidence interval mean

Question

question 10

The high temperatures (in degrees Fahrenheit) of a random sample of 10 small towns are:

96.3
96.4
99.5
98.7
97.5
97.6
97.2
96.8
96.5
97.4

Assume high temperatures are normally distributed. Based on this data, find the 98% confidence interval of the mean high temperature of towns. Enter your answer as an open-interval (i.e., parentheses) accurate to two decimal places (because the sample data are reported accurate to one decimal place).

98% C.I. = 

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

Answer 1

98% CI for the mean = (96.470, 98.310)