Find right distribution function

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Find right distribution function

Postby Blom91 » Thu Jan 07, 2016 11:01 am

Hello everyone,

I am new to this forum and also new to SPSS.

I am developing a simulation of a logistic process in a program called Plant Simulation. A part of the simulation is the arrival of trucks at the factory. These trucks arrive according to a planning but a lot of trucks are too late or too early. I want to simulate the late and early arrival of the trucks by some sort of distribution (normal, weibull ecc.??). The problem is that I don't know which distribution to take. In the Attachment i added a excel file with the data of the trucks arriving too early or too late in minutes. The negative values are trucks arriving to early and positive values are trucks arriving too late.

Is it possible to use some sort of datafit in SPSS to see which distribution fits best to the dataset? Or can anyone help me with the steps to take to find the best fitting distribution?

Thanks in advance!

With kind regards,

Steven Blom
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