The high temperatures in degrees Fahrenheit of a random sample of 6 small towns are 99 5 98 1 96 9 98 9 96 4 99 6 Assume high temperatures are normally distributed Based on this data find the 90 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 90 C I Answer should be obtained without any preliminary rounding However the critical value may be rounded to 3 decimal places