The demand for a particular type of pump at an isolated mine is random and independent...
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The demand for a particular type of pump at an isolated mine is random and independent of previous occurrences, but the average demand in a week (7 days) is for 2.8 pumps. Further supplies are ordered each Tuesday morning and arrive on the weekly plane on Friday morning. Last Tuesday morning only one pump was in stock, so the storesman ordered six more to come in Friday morning. (a) What is the average demand for 1 day? (b) What is the average demand for 3 days? (c) Find the probability that one pump will still be in stock on Friday morning when new stock arrives. Hint: From Tuesday morning to Friday morning is 3 days. The demand for a particular type of pump at an isolated mine is random and independent of previous occurrences, but the average demand in a week (7 days) is for 2.8 pumps. Further supplies are ordered each Tuesday morning and arrive on the weekly plane on Friday morning. Last Tuesday morning only one pump was in stock, so the storesman ordered six more to come in Friday morning. (a) What is the average demand for 1 day? (b) What is the average demand for 3 days? (c) Find the probability that one pump will still be in stock on Friday morning when new stock arrives. Hint: From Tuesday morning to Friday morning is 3 days.
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Answer rating: 100% (QA)
Let W be weekly demand for 7 days D be daily demand and T be demand for 3 days A Back... View the full answer
Related Book For
Managerial Economics Theory Applications and Cases
ISBN: 978-0393912777
8th edition
Authors: Bruce Allen, Keith Weigelt, Neil A. Doherty, Edwin Mansfield
Posted Date:
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