1)A work center containing 6 machines with the same capacity operates 2 shifts per day 4 days a week (9 hours per shift). This is the effective capacity. If the work center has a system efficiency of 82%, what is the expected production in hours per week? 2) What is the expected production for a plant with a design capacity of 108 chairs per day if its effective capacity is 79 chairs and its efficiency is 91 percent