R Commander – hypothesis testing

June 16, 2010

(This article was first published on Software for Exploratory Data Analysis and Statistical Modelling, and kindly contributed to R-bloggers)

The R Commander GUI can be used to perform classical hypothesis testing. There are menu options to undertake the variants on the t-test as well as tests on proportions or equality of variances for two samples of data.

Fast Tube
Fast Tube by Casper

The “Statistics” menu provides access to various hypothesis tests via the “Means” sub-menu including:

  • Single sample t-test – for situations where there is one sample of data and we are testing against hypothesised average for the population.
  • Independent two sample t-test – where there are two samples and we are comparing the average values for each sample to look for evidence that the averages are different.
  • Paired t-test – the situation where each individual in the sample has two directly comparable measurements.

Other useful resources are provided on the Supplementary Material page.

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