Two Sample Mean Test Power Calculator
Estimates approximate power for a two-group mean comparison. The worked condition keeps the inputs and convention visible for checking.
Set the labeled inputs
Two Sample Mean Test Power
Reading the planned inputs before reporting for two sample mean test power
Estimates approximate power for a two-group mean comparison. The named quantity is two sample mean test power calculator. This is section 1 of the two sample mean test power discussion.
Save the inputs, formula convention, units, exclusions, and unrounded output with this result. This statement is conditional on the two sample mean test power setup and section 1.
For two sample mean test power, preserve the source definition, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
Where the method applies under the stated model for two sample mean test power
The calculation treats the groups as independent with a common planned spread and equal sample sizes. The named quantity is two sample mean test power calculator. This is section 2 of the two sample mean test power discussion.
A three-unit difference with SD 5 and 30 per group gives an approximate power near 0.62. This statement is conditional on the two sample mean test power setup and section 2.
For two sample mean test power, preserve the denominator choice, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
A related calculation is paired mean test power.
When another method fits when the sample changes for two sample mean test power
The calculation treats the groups as independent with a common planned spread and equal sample sizes. The named quantity is two sample mean test power calculator. This is section 3 of the two sample mean test power discussion.
Save the inputs, formula convention, units, exclusions, and unrounded output with this result. This statement is conditional on the two sample mean test power setup and section 3.
For two sample mean test power, preserve the comparison group, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
A controlled alternative during an independent review for two sample mean test power
Estimates approximate power for a two-group mean comparison. The named quantity is two sample mean test power calculator. This is section 4 of the two sample mean test power discussion.
A three-unit difference with SD 5 and 30 per group gives an approximate power near 0.62. This statement is conditional on the two sample mean test power setup and section 4.
For two sample mean test power, preserve the time boundary, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
What the result can support at the chosen parameters for two sample mean test power
The calculation treats the groups as independent with a common planned spread and equal sample sizes. The named quantity is two sample mean test power calculator. This is section 5 of the two sample mean test power discussion.
Save the inputs, formula convention, units, exclusions, and unrounded output with this result. This statement is conditional on the two sample mean test power setup and section 5.
For two sample mean test power, preserve the design boundary, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
A check on the stated parameter before comparing methods for two sample mean test power
The calculation treats the groups as independent with a common planned spread and equal sample sizes. The named quantity is two sample mean test power calculator. This is section 6 of the two sample mean test power discussion.
A three-unit difference with SD 5 and 30 per group gives an approximate power near 0.62. This statement is conditional on the two sample mean test power setup and section 6.
For two sample mean test power, preserve the rounding rule, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
What changes when an input moves when the result is reused for two sample mean test power
Estimates approximate power for a two-group mean comparison. The named quantity is two sample mean test power calculator. This is section 7 of the two sample mean test power discussion.
Save the inputs, formula convention, units, exclusions, and unrounded output with this result. This statement is conditional on the two sample mean test power setup and section 7.
For two sample mean test power, preserve the reference population, the stated units, and the named convention beside the displayed number. A second analyst should be able to reconstruct the same result without guessing which population or setup was intended.
Questions about this calculation
Before reporting, why might another program return a different number for two sample mean test power?
Keep the inputs, units, method, exclusions, and unrounded output together. The reported quantity here is two sample mean test power calculator.
When inputs change, when should the calculation be repeated for two sample mean test power?
Keep the inputs, units, method, exclusions, and unrounded output together. The reported quantity here is two sample mean test power calculator.
For the worked condition, can a boundary value be entered for two sample mean test power?
Keep the inputs, units, method, exclusions, and unrounded output together. The reported quantity here is two sample mean test power calculator.