【實用工具app】Survey Calculators|最夯免費app

A collection of three calculators for survey analysis:

SAMPLE SIZE CALCULATOR: Used to identify the correct sample size based upon population size, desired confidence interval and confidence level.

CONFIDENCE CALCULATOR: Identifies the actual margin of error base upon population, sample and response distribution.

SIGNIFICANCE CALCULATOR: Reveals whether or not the difference in responses between two groups is statistically significant or not.

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