Essay
Exhibit 12-1
A grocery store manager would like to use an analytical queueing model to study the lines of customers that form in front of the checkout stations in the store. During a period of time when business is steady, several store employees have gathered data on customer interarrival times, which are shown below.
![Exhibit 12-1 A grocery store manager would like to use an analytical queueing model to study the lines of customers that form in front of the checkout stations in the store. During a period of time when business is steady, several store employees have gathered data on customer interarrival times, which are shown below. -[Part 2] Refer to Exhibit 12-1.Assuming an exponential distribution with the parameter λ you obtained in Part 1,what is the probability that a customer interarrival time will be less than 2 minutes](https://d2lvgg3v3hfg70.cloudfront.net/TB6954/11ea5c70_d2f6_97d4_945b_1bd4e06baef1_TB6954_00_TB6954_00_TB6954_00.jpg)
-[Part 2] Refer to Exhibit 12-1.Assuming an exponential distribution with the parameter λ you obtained in Part 1,what is the probability that a customer interarrival time will be less than 2 minutes
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