The following table shows orders to be processed at a machine shop as of 8:00a.m. Monday. The jobs have different operations they must go through. Processing times are in days. Jobs are listed in order of arrival. Click here for the Excel Data File a. Determine the processing sequence at the first work center using each of these rules: (1) First come, first served, (2) Slack per operation. (Hint: In case of a tie choose the jobs in alphabetical order.) b. Compute the effectiveness of each rule using each of these measures: (1) average completion time, (2) average number of jobs at the work center. (Round your answers to 2 decimal places.)