You are interested in finding a 90% confidence interval for the average number of days of class that college students miss each year. The data below show the number of missed days for 15 randomly selected college students. 6,4,0,2,0,1,1,0,3,9,7,2,11,6,5
Assume a normal distribution and round your answers to two decimal places.
To compute the confidence interval, use the __ distribution.