Sheridan Services, Inc. is trying to establish the standard labor cost of a typical brake repair. The following data have been collected

from time and motion studies conducted over the past month.

$($a$)$

$($b$)$

Determine the standard direct labor hourly rate. $($Round answer to $2$ decimal places, e$.$g$.1\mathrm{.}25.)$

Standard direct labor hourly rate $