Author Question: Sample observations of a claims processor made over a 160-hour work month reveal that the worker ... (Read 333 times)

Wadzanai · **on:** Dec 3, 2019

Question 1

A work sampling study requires an acceptable error level of 10% and z = 2 for 95.45% confidence. The adequate sample size is ________ if the sample proportion is thought to be as large as 50%, but ________ if the sample proportion is thought to be about 20%.
◦ 100; 16
◦ 20; 50
◦ 100; 64
◦ 50;20
◦ cannot be determined from the information given

Question 2

Sample observations of a claims processor made over a 160-hour work month reveal that the worker produced a total of 384 completed claims forms. The performance rating was 80%. The worker was idle 20% of the time (so that idle time should be subtracted from the total time when computing the average observed time). The allowance factor is 8%. What is the normal time per unit?
◦ 0.42 minutes
◦ 17.4 minutes
◦ 21.7 minutes
◦ 16.0 minutes
◦ 20.0 minutes

adf223 · **Reply #1 on:** Dec 3, 2019

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