Power Details window option under Oneway platform, have others used this to illustrate power and sample size?

Vball247 — Thu, 24 Sep 2026 19:32:05 GMT

Wondering if other JMP users have used the "Power Details window" under Oneway platform?

Following the talk "Can We Talk...About Sample Size?" (2026-US-30MP-2930) in Discovery Summit 2026 by Dale Human, thought it was very interesting how he said to check Power and suggested sample size, after, and before, an analysis. Dale suggested using the DOE > Sample Size Explorers > Power > Power for Two Independent Sample Means to check power.

Did not know that the Oneway platform has the option for "Power", and when you select it from the menu, shows a "Power Details window"! This is another "OMJ!" moment ("Oh My JMP already had it!")

Using the Fitness dataset, plotting Oxy vs Sex, performing two sample t-test, p-value is low, at 0.0057. But now check the Power of this test.

From the menu, if you select "Power", adds the "Power Details window" section to the Oneway window:

If you select "Solve for Power", it will give you the Power of this test.

Also, you can do a "wait-if" on increasing the number of samples, by steps. Looks like this:

And there is a small power plot at the bottom!

Recreating in the DOE > Sample Size Explorers > Power > Power for Two Independent Sample Means, get the same 0.8218 for Power.

Also interesting the script to enable this:

Oneway(
	Y( :Oxy ),
	X( :Sex ),
	Means( 1 ),
	Mean Diamonds( 1 ),
	Power(
		Alpha( 0.05 ),
		Sigma( 4.74003159066053 ),
		Delta( 2.53881137990873 ),
		Number( 31 ),
		Solve for Power,
		Done
	)
);

or for checking increments of sample size:

Oneway(
	Y( :Oxy ),
	X( :Sex ),
	Power(
		Alpha( 0.05 ),
		Sigma( 4.74003159066053 ),
		Delta( 2.53881137990873 ),
		Number( 31, 60, 5 ),
		Solve for Power,
		Done
	)
);

As anyone had experience using the other options?

- Solve for Least Significant Number

- Solve for Least Significant Value

- Adjusted Power and Confidence Level

I am looking to add this to our statistics training, wondered if anyone else has used this menu option in the Oneway platform.

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Power Details window option under Oneway platform, have others used this to illustrate power and sample size?