Alternative hypothesis

R Commander – hypothesis testing

June 16, 2010 | Ralph

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 by Casper The “Statistics” menu provides access to various hypothesis ... [Read more...]

Paired Student’s t-test

July 26, 2009 | Todos Logos

Comparison of the means of two sets of paired samples, taken from two populations with unknown variance.A school athletics has taken a new instructor, and want to test the effectiveness of the new type of training proposed by comparing the average time...
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