Exhibit 13.1 The Following Questions Are Based on the Output Below

Exhibit 13.1
The following questions are based on the output below.
A store currently operates its service system with 1 operator. Arrivals follow a Poisson distribution and service times are exponentially distributed. The following spreadsheet has been developed for the system.
-If cell B2 contains the value for μ and cell A5 contains the value for T, what formula should go in cell B5 to compute the P(Service time) ≤ T for this exponential distribution?

A) =1-EXP($B$2*A5)
B) =EXP(-$B$2*A5)
C) =1-EXP(-$B$2)
D) =1-EXP(-$B$2*A5)