An analyst has timed a metal-cutting task for 50 cycles. The average time per cycle was 10.5 minutes, and the standard deviation was 1.15 minutes for a worker with a performance rating of 122 percent. Assume an allowance of 14 percent of task time. Calculate the standard time for this task. (Do not round intermediate calculations. Round the final answer to 2 decimal places.)

A task was timed for 60 cycles. It took an average of 1.32 minutes per cycle. The performance rating was 100 percent, and workday allowance is 6 percent. Determine each of the following. (Do not round intermediate calculations. Round the final answers to 2 decimal places.)        a.  Observed time minutes   b.  Normal time minutes   c.  Standard time minut

Assuming an allowance factor of 15 percent of workday, calculate the standard time for this task. (Round the final answers to 2 decimal places.) Element Performance Rating  ST1 90%           minutes  2 80            minutes  3 134            minutes  4 108            minutes

How many observations should a stopwatch time-study analyst plan for in a task that has a standard deviation of 1.47 minutes per piece if the goal is to estimate the mean time per piece to within 0.4 minute with a confidence of 99.0 percent? (Round the intermediate calculations to 2 decimal places. Round the final answer to the next whole number.)

A job had an observed time of 5 minutes, a performance rating of 0.80, and an allowance proportion of 10 percent of job time. Twenty-five cycles were timed. Normal time for the job in minutes is:Multiple Choice4.54.03.64.4

How many work cycles should be timed to estimate the average cycle time to within 1 percent of the sample mean with a confidence of 95.0 percent if a pilot study yielded these times (in minutes): 4.9, 4.1, 4.3, 4.1, 4.3, and 4.6? (Round the final answer to the nearest whole number.)