Question Answered step-by-step Suppose that the average time spent per day with digital media… Suppose that the average time spent per day with digital media several years ago was 3 hours and 32 minutes. For last? year, a random sample of 20 adults in a certain region spent the numbers of hours per day with digital media given in the accompanying table. Preliminary data analyses indicate that the? t-interval procedure can reasonably be applied. Find and interpret a 99?% confidence interval for last? year’s mean time spent per day with digital media by adults of the region.? (Note: x=4.75 hr and s=2.29 ?hr.) The 99?% confidence interval is from _______ ?hour(s) to _________ hour(s).?(Round to two decimal places as? needed.) Math Statistics and Probability EE 13 Share QuestionEmailCopy link Comments (0)