- This app is designed to calculate sample sizes
- This formula assumes a known large population size (i.e 30 or greater) without replacement
- The app asks for user input of Population Size, Margin of Error, Confidence Level, and Population proportion and displays the calculated sample size
2022-10-26
My App: Sample Size Calculator
Methodology
- Formula:
- where
- n = sample size
- N = population size
- MOE = Margin of error
- z = Z-score (obtained from confidence level)
- p = population proportion
Methodology (Cont.)
- The distribution used to obtain the z value is the normal distribution
- Formula taken from https://stattrek.com/sample-size/simple-random-sample
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