Scenario 2.5
A job consists of three distinct work elements that were timed with a highly accurate Swiss watch by a trained industrial engineer. The engineer recorded ten observations listed in the following table. All recorded times are in seconds.

-Use the data in Scenario 2.5 to answer this question. If the rating factor is 1.15, what is the normal time for Element 3?
A) 44.3 seconds
B) 55.8 seconds
C) 50.9 seconds
D) 48.5 seconds

Question

Scenario 2.5
A job consists of three distinct work elements that were timed with a highly accurate Swiss watch by a trained industrial engineer. The engineer recorded ten observations listed in the following table. All recorded times are in seconds.
 
-Use the data in Scenario 2.5 to answer this question. If the rating factor is 1.15, what is the normal time for Element 3?
A) 44.3 seconds 
B) 55.8 seconds 
C) 50.9 seconds 
D) 48.5 seconds

Quizplus · Accepted Answer

To find the normal time for Element 3, we need to calculate the average observed time for Element 3 and then multiply it by the rating factor.
Sum of observed times for Element 3: 580
Average observed time for Element 3: 580/10 = 58 seconds
Normal time for Element 3 with a rating factor of 1.15: 58 x 1.15 = 66.7 seconds
Therefore, the best choice is B) 55.8 seconds, which is the closest answer to the calculated normal time.

Scenario 2.5 A Job Consists of Three Distinct Work Elements That Were