An R Introduction to Statistics

MASS

Wilcoxon Signed-Rank Test

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

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.

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.