Based on the class sample needs a 95% confidence interval for the mean age. For the average age, form a 95% confidence interval:

what distribution should be used?

what is the critical value?

what is the error bound?

what is the lower bound?

what is the upper bound?

Ages are: 17,17,17,24,24,27,27,27,28,28,29,32,32,34,34,35,35,37,41,43,50,57

Mean: 31.59

Standard deviation: 10.04