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P Chart - show zones and shade zone option do NOT work?

tajrida

Community Trekker

Joined:

Apr 8, 2015

Using the washer.JMP (sample data file) I created a P-chart and selected "show zones" and "shade zones" option in red triangle. Nothing happens....

Why?

1 ACCEPTED SOLUTION

Accepted Solutions
Solution

Could it be that your sample sizes are not all the same? When sample sizes are unequal you can't show the zones because they're non-constant.

-Jeff

-Jeff
4 REPLIES
tajrida

Community Trekker

Joined:

Apr 8, 2015

FYI: My version of JMP is  12.0.1

ms

Super User

Joined:

Jun 23, 2011

Strange. I run the same version (for Mac) and the commands works for me.

tajrida

Community Trekker

Joined:

Apr 8, 2015

This is so strange.. Tried the commands on "washer.JMP" today and found they are working.

Next...

Tried same commands on other P-charts created using company and internet data and nothing works.

Don't know what I am doing wrong or may be a glitch in software

Solution

Could it be that your sample sizes are not all the same? When sample sizes are unequal you can't show the zones because they're non-constant.

-Jeff

-Jeff