SCENARIO 12-10 One Criterion Used to Evaluate Employees in the Assembly Section

Multiple Choice

SCENARIO 12-10
One criterion used to evaluate employees in the assembly section of a large factory is the number of defective pieces per 1,000 parts produced.The quality control department wants to find out whether there is a relationship between years of experience and defect rate.Since the job is repetitious,after the initial training period any improvement due to a learning effect might be offset by a loss of motivation.A defect rate is calculated for each worker in a yearly evaluation.The results for 100 workers are given in the table below.

-Referring to Scenario 12-10,what is the expected number of employees with less than 1 year of training time and a high defect rate?

A) 4.17
B) 4.60
C) 5.28
D) 9.17