topic Power Explorer for Two Independent Sample Equivalence in Discussions

Power Explorer for Two Independent Sample Equivalence

SteveCz — Fri, 01 Aug 2025 15:44:36 GMT

Does anyone have a case study of the use of the Power Explorer for Two Independent Sample Equivalence? Ideally, the case study would demonstrate it's use for scale-up from future pilot line trials to eventual full production.

I ask this because there doesn't seem to be an example and/or sample data file on this subject in the JMP Help.

Re: Power Explorer for Two Independent Sample Equivalence

MRB3855 — Wed, 06 Aug 2025 13:29:36 GMT

Hi @SteveCz : Here's my two cents: I can perhaps see why there is no example and/or sample data file as you describe; Power analysis is an a priori process. i.e., the data are not collected yet. It is a method to help decide how much data to collect. Once the data are collected, then the data analysis begins (and power is not part of that analysis). So, a sample data file doesn't make sense really.

Re: Power Explorer for Two Independent Sample Equivalence

SteveCz — Wed, 06 Aug 2025 14:00:53 GMT

Good point, so I'll re-phrase my second sentence to read:

I ask this because there isn't an example on this subject in JMP Help.

A case study would be helpful to explain two things that aren't clear to me: Upper/Lower Margin and Difference to Detect.

Re: Power Explorer for Two Independent Sample Equivalence

MRB3855 — Wed, 06 Aug 2025 14:46:36 GMT

Hi @SteveCz : This may not be a bad place to start.

https://pubs.acs.org/doi/pdf/10.1021/ac053390m

Re: Power Explorer for Two Independent Sample Equivalence

SteveCz — Thu, 07 Aug 2025 13:46:53 GMT

Thanks again. I'll check out the publication.

Meanwhile, if anyone can explain the practical application of Upper/Lower Margin and Difference to Detect with a case study, I'd be much obliged.

Steve