Poison goodness fit-chi square test

Reference no: EM13107961

At a local supermarket receiving dock, the number of truck arrivals per day is recorded for 100 days.

(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? Trucks

Arrivals per Day at a Loading Dock

Number of Arrivals

0 1 2 3 4 5 6 7 Total

Frequency 4 23 28 22 8 9 4 2 100

Reference no: EM13107961

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