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How to test for independent data using JMP?

Aravindan

My customer asked me to test a few test of data for independent data. He told me to use Run Chart and check p value. However i am unable to determine how this is done.

Basically what we are trying to achieve is take data sets for a particular characteritsics from many machines,

Our intent is to check the following, We should test for normality, independency and hypothesis testing for mean and equal variances. I am able to do all the test except independency. Any help to solve this will be useful.

Accepted answers

Byron_JMP

Sometimes when I hear about independence of runs, the concern has to do with autocorrelation. That's easy to calculate, but even easier to turn on in the Distribution Platform, (summary statistics, red triangle, Customize summary statistics, turn on autocorrelation.

Peter_Bartell

To pile onto my colleague @Byron_JMP you may also want to take a look at the Specialized Modeling -> Time Series platform if indeed your data is in time series form by examining autocorrelation at lag time t.

All comments

txnelson

There is an JMP Addin in the File Exchange that will calculate the Run's Test you are looking for.

Just download and install the Adding, and you can then run it.

Byron_JMP

Peter_Bartell

Aravindan

What is the metric we are looking for in the time series or autocorrelation to determine if its independent data or dependent.