As a regional sales manager, Nora Burke travels frequently and relies on her cel
ID: 351268 • Letter: A
Question
As a regional sales manager, Nora Burke travels frequently and relies on her cell phone to keep up to date with clients. She has tried three different service providers, Airway, Bellular, and CyCom, with varying degrees of success. The number of failures in a typical eight-hour day and the average time to regain service are shown below. Nora’s contract is up for renewal. Which cellular service should she use? Why?
Company Number of Failure Time to Regain Service 1 10 2 minutes 2 8 4 minutes 3 3 10 minutesExplanation / Answer
Following to be noted :
Total available time ( in an eight hour day ) = 480 minutes
Total off time in a day = Number of failures x Time to regain service for each failure
Therefore ,
Net daily availability of services from company 1 = 480 - 10 x 2 = 480 – 20 = 460
Net daily availability of services from company 2 = 480 – 8 x 4 = 480 – 32 = 448
Net daily availability of services from company 3 = 480 – 3 x 10 = 480 – 30 = 450
Therefore net daily availability of services from company 1 ( Airway ) is 460 minutes . Therefore , she should use services of company 1 ( Airway)
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