4f19f22, 8:01 AM JDEAS Some latest study shows that college students are increasingly skimping on their sleep. A researcher from a small community college wants to estimate the mean weekdays sleep time of its students. He takes a random sample of 85 students and records their weekday mean sleep time as 6.60 hours. Assume that the population standard deviation is fairly stable at 1.50 hours. (a) Construct a 96% confidence interval for the population mean weekday sleep time of all students of this college. Use the following table of 2% for most common a values. a \"mum Find 22 : 2 \\/ Round the margin of error and the confidence interval endpoints to 2 decimal places. Calculate the margin of error E : \\/ What is the 96% confidence interval?