Keith assembles peanut valves and the recorded data is displayed in the table.What is the select time for this job element if he is rated at 75%?
$$\begin{array} { | c | c | }
\hline \begin{array} { c }
\text { Time } \
\text { (minutes) }
\end{array} & \text { Observations } \
\hline 2.5 & 15 \
\hline 3.0 & 23 \
\hline 3.5 & 27 \
\hline
\end{array}$$
A) Greater than or equal to 3 minutes
B) Less than 3 minutes but greater than or equal to 2.7 minutes
C) Less than 2.7 minutes but greater than or equal to 2.4 minutes
D) Less than 2.4 minutes

Question

Keith assembles peanut valves and the recorded data is displayed in the table.What is the select time for this job element if he is rated at 75%?
$$\begin{array} { | c | c | } 
\hline \begin{array} { c } 
\text { Time } \
\text { (minutes) }
\end{array} & \text { Observations } \
\hline 2.5 & 15 \
\hline 3.0 & 23 \
\hline 3.5 & 27 \
\hline
\end{array}$$
A) Greater than or equal to 3 minutes
B) Less than 3 minutes but greater than or equal to 2.7 minutes
C) Less than 2.7 minutes but greater than or equal to 2.4 minutes
D) Less than 2.4 minutes

Quizplus · Accepted Answer

The select time is the time taken by the operator to perform the job element at a normal pace. The normal pace is 75% of the observed time. Therefore, the select time is 75% of the average observed time. The average observed time is (2.5 + 3.0 + 3.5) / 3 = 3 minutes. Therefore, the select time is 75% of 3 minutes = 2.25 minutes. Since the select time is greater than or equal to 3 minutes, the correct answer is A.

Keith Assembles Peanut Valves and the Recorded Data Is Displayed