Table H.1
A worker was observed for four cycles in a repetitive task that contains four distinct elements. The observer recorded the following items in seconds, using the snap-back method:

-The observer assigned a performance rating factor of 1.15 to the worker and the company employs an allowance factor of 20%. How many more observations must be made in order to develop an estimate of the select time for all elements of the job that are within 3% with 95% accuracy?
A) 225
B) 357
C) 440
D) 429

Question

Table H.1
A worker was observed for four cycles in a repetitive task that contains four distinct elements. The observer recorded the following items in seconds, using the snap-back method:
 
-The observer assigned a performance rating factor of 1.15 to the worker and the company employs an allowance factor of 20%. How many more observations must be made in order to develop an estimate of the select time for all elements of the job that are within 3% with 95% accuracy?
A) 225 
B) 357 
C) 440 
D) 429

Quizplus · Accepted Answer

The correct answer is A because the observer assigned a performance rating factor of 1.15 to the worker and the company employs an allowance factor of 20%. To develop an estimate of the select time for all elements of the job that are within 3% with 95% accuracy, 225 more observations must be made.

Table H.1 A Worker Was Observed for Four Cycles in a Repetitive