At a local supermarket receiving dock, the number of truck arrivals per day is recorded for 100
Question:
(a) Estimate the mean from the sample.
(b) Calculate the expected frequencies assuming a Poisson distribution. Show your calculations in a spreadsheet format.
(c) Carry out the chi-square test, combining end categories as needed to ensure that all expected frequencies are at least five. Show your degrees of freedom calculation.
(d) At α = .05, can you reject the hypothesis that arrivals per day follow a Poisson process?
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Related Book For
Applied Statistics In Business And Economics
ISBN: 9780073521480
4th Edition
Authors: David Doane, Lori Seward
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