# Tag Archives: t-test

## Hypothesis Test for Paired Means

This test is sometimes called a Matched Pairs Hypothesis t Test. Matched pair design is when a person is tested against himself or very similar subjects matched in pairs. The randomness happens in which treatment is given first (if the subject is paired with himself) or which treatment is given to who (if contrasting the […]

## Hypothesis Test for a Single Mean

A hypothesis test for a single mean is a research procedure by which a statistical inference is made through a decision about a single quantitative population parameter. This type of hypothesis test is a student t-distribution, where we analyze the more-accurate t-distribution of the sample, and calculating the test statistic ““. A hypothesis test requires […]

## Confidence Interval for Two Independent Means

A confidence interval for two independent means is calculated to likely contain the difference between two true population means for one binary categorical variable and one quantitative variable. For example, a company might be considering replacing some of its packaging workers with machines, so they will compare the mean amount of time it takes a […]

## Confidence Interval for Paired Means

The method of paired means is used when two sets of data have the same number of elements, and there exists a one-to-one correspondence between the elements of each set. The first step in using this method is to calculate the difference between the two sets of data: . This results in one quantitative variable […]