Another calculator for a two-sample proportion z-test: Two Sample Proportion z-Test Calculator This web calculator conducts a z-test for the difference between two populations' proportions. The ...

z-test for population proportion: z-Test for Population Proportion This applet allows users to specify a hypothesized population proportion, sample proportion and sample size as well as an alternative ...

By plugging the values into the Binomial formula we get 0.196, the probability of 6 or fewer HSV cases out of 20 (one tailed test). Since our hypothesis of interest is whether the observed and ...

For example, tests can be employed for one, two, or more data samples of various sizes for averages, variances, proportions, paired or unpaired data, or different data distributions.