Please include the formulas on how to get A-D by interpreting the table and using story problem underneath of it

5. You have received the following data involving milling of a part by a worker in your department. The data are expressed in minutes: observation observation observation observation Work Element Perf. Rating 90 .48 24 .27 .57 26 .67 54 .29 23 .68 Average 50 25 .68 .55 .30 .70 .57 .30 56 .30 .80 1.1 1.2 31 Your department is scheduled for one 8-hour shift, 5 days per week and workers are given a daily allowance of 72 minutes for personal time and other contingencies. Contractually daily standards are calculated as the normal time divided by 1- % allowance. Assembly workers are paid $10.50 per hour. Historically scrap on this part has been averaging 8%. A. Calculate the standard time to produce on part based on the above time study information. Express in units/hr B. You are told that the schedule calls for 550 units per day in the foreseeable future. How many workers are needed to achieve this schedule? c. What is the weekly nominal capacity of one worker who works at an efficiency of 110% with a 4% average scrap rate? D. Given that direct material is $2.15 per unit and fixed cost (overhead) is assessed at 120% of the sum of direct labor cost and direct material cost, what it the standard cost of this product