A worker was observed for four cycles of a repetitive task.The observer used the continuous method for recording the times.The continuous times (in seconds)for each element are: Which one of the following are the "select times" ( )for each element? The first number is the select time for the first element,the second number is the select time for the second element,and so on.
A)19.5,23,25,30
B)1.5,3.5,5,2
C)2,3,2,5
D)1.5,3.5,2,5

Question

A worker was observed for four cycles of a repetitive task.The observer used the continuous method for recording the times.The continuous times (in seconds)for each element are:  Which one of the following are the "select times" (  )for each element? The first number is the select time for the first element,the second number is the select time for the second element,and so on.
A)19.5,23,25,30 
B)1.5,3.5,5,2 
C)2,3,2,5 
D)1.5,3.5,2,5

Quizplus · Accepted Answer

The select time for each element is the average time it takes to complete that element over the four cycles. Using the continuous times given, we can calculate the select times as follows:
Element 1: (1.5+4.5+7+10)/4 = 5 seconds
Element 2: (0.5+2.5+2+3.5)/4 = 2.125 seconds
Element 3: (2+2.5+2+3)/4 = 2.375 seconds
Element 4: (3+6+3.5+8.5)/4 = 5 seconds
Therefore, the select times for each element are 5, 2.125, 2.375, and 5 seconds, which corresponds to choice D.

A Worker Was Observed for Four Cycles of a Repetitive