4 workers are employed in a workshop. The time needed for a given task is measured for all of them. First worker needs 15 minutes with 100% performance rate; Second worker 16 minutes with 70% performance rate; Third worker 20 minutes with 50%; Fourth worker 10 minutes with 120%. Determine the normal time (Tn) of the task. (5 pts) Calculate the standard time (Tstd) if the personal time allowance is 7%, the fatigue time allowance is 5% and the delay allowance is 4%. (5 pts).

You work as the sales manager for a company that sells office supplies to businesses of all sizes. because the profit margins are razor-thin, you need to ensure that you are getting the very best prices on paper, pencils, pens, post-it notes, and other office supplies from the manufacturers. when reviewing the quarterly profit statement, you realize that your costs are higher than they should be, and you trace the higher costs back to an employee who has been lax about getting competitive bids to ensure the lowest prices. when you conduct your research to determine the reason for the higher costs, and take action to bring those costs back down, in which of the key management processes are you taking part?