Kengo Nagashima

Brief description

This web application is an implementation of sample size calculation methods for binomial test in JavaScript.

Threshold proportion ($p_0$) correspond to the null hypothesis.
Expected proportion ($p$) correspond to the alternative hypothesis.

Normal approximation: this application use the score-type standard error (i.e., standard error under $H_0$).

Exact test of a binomal porportion: This method can be computationally intensive. Please be careful.






  1. Agresti A. Categorical data analysis, 2nd ed. Wiley, 2002.
  2. Fleiss JL, Levin B, Paik MC. Statistical methods for rate and proportion, 3rd ed. Wiley, 2003.
  3. Johnson NL, Kemp AW, Kotz S. Univariate discrete distributions, 3rd ed. Wiley, 2005.

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