BookmarkSubscribeRSS Feed
Choose Language Hide Translation Bar
venkateshpandit
New Contributor

T test

Hi everybody ,

I just want to know if the jmp  SW built-in functions allow you to specify whether the datasets are heteroscedastic (different σ) or homoscedastic (equal σ). 

What are the steps i need to do to determine if both the populations have equal varaiance or not?

Thanks

0 Kudos
2 ACCEPTED SOLUTIONS

Accepted Solutions
Highlighted
txnelson
Super User

Re: T test

It is an option under the Fit Y by X(Oneway) analysis

variences.PNG

You could have found this by searching th Statistics Index for it

variances2.PNG

Jim
0 Kudos

Re: T test

Adding to Jim's help, choose Pooled t if the variances are not different or t Test if they are different.

Learn it once, use it forever!
3 REPLIES 3
Highlighted
txnelson
Super User

Re: T test

It is an option under the Fit Y by X(Oneway) analysis

variences.PNG

You could have found this by searching th Statistics Index for it

variances2.PNG

Jim
0 Kudos

Re: T test

Adding to Jim's help, choose Pooled t if the variances are not different or t Test if they are different.

Learn it once, use it forever!
venkateshpandit
New Contributor

Re: T test

Thank you

0 Kudos