One hundred eight Americans were surveyed to determine the number of hours they spend watching television each month. It was revealed that they watched an average of 151 hours each month with a standard deviation of 28 hours. Assume that the underlying population distribution is normal. Calculate the EBM.Use a 99% Confidence Level Use 3 decimal places until the end calculation then round to two decimal places. You do a study of hypnotherapy to determine how effective it is in increasing the number of hourse of sleep subjects get each night. You measure hours of sleep for 12 subjects with the following results. Construct a 95% confidence interval for the mean number of hours slept for the population (assumed normal) from which you took the data. 8.2 9.1 7.7 8.6 16.9 #11.2 :10.1 9.9 18.9 9.2 17.5 10.5 Calculate the mean and standard deviation to 4 places in order to find the confidence interval. Fill in the blank with the confidence interval, round the confidence interval endpoints to two decimal places: (