# MASS

## Wilcoxon Signed-Rank Test

A tutorial of performing statistical analysis with the Wilcoxon signed-rank test.

## Chi-squared Test of Independence

A tutorial on performing the Chi-squared goodness of fit test for independent variables.

## Multinomial Goodness of Fit

A tutorial on performing the Chi-squared goodness of fit test for multinomial population.

## Comparison of Two Population Proportions

A tutorial on statistical inference about difference between two population proportions.

## Population Mean Between Two Matched Samples

A tutorial on statistical inference about population mean between two matched samples.

## Interval Estimate of Population Proportion

A tutorial on computing the interval estimate of population proportion at given confidence level.

## Point Estimate of Population Proportion

A tutorial on computing the point estimate of population proportion from a simple random sample.

## Sampling Size of Population Mean

A tutorial on computing the sampling size for the desired margin of error of population mean estimate at given confidence level.

## Interval Estimate of Population Mean with Unknown Variance

A tutorial on computing the interval estimate of population mean at given confidence level. The variance of the population is assumed to be unknown.

## Interval Estimate of Population Mean with Known Variance

A tutorial on computing the interval estimate of population mean at given confidence level. The variance of the population is assumed to be known.