Suppose that annually an average of l library patrons want to borrow a book. A patron borrows the book for an average of 1/μ years. Suppose we observe that the book is actually borrowed an average of R times per year. Explain how we can estimate λ, which is an unobservable quantity. (Hint: Let U be the expected number of times per year a patron wants to borrow the book and the book is out. Note that λ = R + U.)
Suppose that annually an average of l library patrons want to borrow a book. A patron borrows the book for an average of 1/μ years. Suppose we observe that the book is actually borrowed an average of R times per year. Explain how we can estimate λ, which is an unobservable quantity. (Hint: Let U be the expected number of times per year a patron wants to borrow the book and the book is out. Note that λ = R + U.)
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter12: Queueing Models
Section12.5: Analytic Steady-state Queueing Models
Problem 9P
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Suppose that annually an average of l library patrons want to borrow a book. A patron borrows the book for an average of 1/μ years. Suppose we observe that the book is actually borrowed an average of R times per year. Explain how we can estimate λ, which is an unobservable quantity. (Hint: Let U be the expected number of times per year a patron wants to borrow the book and the book is out. Note that λ = R + U.)
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