An Observer Has Recorded the Following Select $\frac { \bar { t } } { }$

question 64

Multiple Choice

An observer has recorded the following select ( $\frac { \bar { t } } { }$ ) for a five-part task and has applied a rating factor (RF) to each.The times are in seconds.If there is a 15 percent allowance for "nonproductive" activities,compute the standard time for the total task.
$$\begin{array} { | c | c | c | } \hline \text { Element } & \bar { t } & R F \\\hline 1 & 6.2 & 0.9 \\2 & 1.7 & 1.1 \\3 & 4.5 & 1.3 \\4 & 1.2 & 0.8 \\5 & 5.0 & 1.2 \\\hline\end{array}$$
The standard time for the task is

• A) fewer than or equal to 21 seconds.
• B) greater than 21 seconds but fewer than or equal to 23 seconds.
• C) greater than 23 seconds but fewer than or equal to 25 seconds.
• D) greater than 25 seconds.