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SteveCz
Level II

Power Explorer for Two Independent Sample Equivalence

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.

 

 

It ain't what you don't know that gets you in trouble, it's what you know for sure that just ain't so. (Attributed to Mark Twain)
4 REPLIES 4
MRB3855
Super User

Re: Power Explorer for Two Independent Sample Equivalence

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. 

SteveCz
Level II

Re: Power Explorer for Two Independent Sample Equivalence

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. 

 

It ain't what you don't know that gets you in trouble, it's what you know for sure that just ain't so. (Attributed to Mark Twain)
MRB3855
Super User

Re: Power Explorer for Two Independent Sample Equivalence

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

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

 

SteveCz
Level II

Re: Power Explorer for Two Independent Sample Equivalence

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

It ain't what you don't know that gets you in trouble, it's what you know for sure that just ain't so. (Attributed to Mark Twain)

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