How does the Sample Size Requirement for the Difference of Means Calculator work?
Free Sample Size Requirement for the Difference of Means Calculator - Given a population standard deviation 1 of σ1, a population standard deviation 2 of σ2 a reliability (confidence) value or percentage, and a variation, this will calculate the sample size necessary to make that test valid.
This calculator has 4 inputs.
This calculator has 4 inputs.
What 2 formulas are used for the Sample Size Requirement for the Difference of Means Calculator?
n = Z-scoreα/22 x (σ12 + σ22)/SE2
α = 1 - Confidence%
For more math formulas, check out our Formula Dossier
α = 1 - Confidence%
For more math formulas, check out our Formula Dossier
What 4 concepts are covered in the Sample Size Requirement for the Difference of Means Calculator?
- confidence interval
- a range of values so defined that there is a specified probability that the value of a parameter lies within it.
- reliability
- the overall consistency of a measure
- sample size
- measures the number of individual samples measured or observations used in a survey or experiment.
- sample size requirement for the difference of means
An Automated Online Math Tutor serving 8.1 million parents and students in 235 countries and territories.
