As district manager part of your responsibility is to identify reasons for changes in sales by store. In one of the district stores you have identified that sales have dropped by 15% and you believe the reason is that not enough time is spent on cleaning and maintenance of Inventory displayed. Cleaning and maintenance hours are supposed to be reported as after store closing hours. Random samples of cleaning and maintenance hours were surveyed to determine the amount of time spent daily on cleaning and maintenance. The times are shown below. If the times are normally distributed with a population variance of 2.00 hours, estimate with 95% confidence the mean daily time spent cleaning and maintaining inventory by store personnel. UI N- N N N W UT Standard Deviation = ? (4 Decimal)