A Methods and Measurements Analyst Needs to Develop a Time

Multiple Choice

A methods and measurements analyst needs to develop a time standard for a certain task. In a preliminary study, he observed one of his workers perform this task five times, with the following results: $$\begin{array} { | l | c | c | c | c | c | } \hline \text { Observation } & 1 & 2 & 3 & 4 & 5 \\\hline \text { Time(Seconds) } & 84 & 76 & 80 & 84 & 76 \\\hline\end{array}$$
What is the standard time for this task if the employee worked at a 25 percent faster pace than average and an allowance of 20 percent of job time is used?

A)  80 seconds
B)  96 seconds
C)  100 seconds
D)  120 seconds
E)  125 seconds