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Hypothesis Test for Proportions

A hypothesis test for proportions is a type of hypothesis test used to make inferences about the proportion of items in a population that have a specified characteristic, based on the proportion of items in a sample that have that characteristic.

The most commonly used tests are are used when the sample size is reasonably large and so the binomial distribution can be approximated by the normal distribution. If the sample size is small a Chi-Square test can be used.

Tests include:

 Comparing proportions Proportions against a specified value

 Analytical and descriptive statistics are covered in the MiC Quality online course Primer in Statistics. Try out our courses by taking the first module of the Primer in Statistics free of charge.
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