How to find the t-distribution

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AP Statistics › How to find the t-distribution

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1

The purpose of the t test is to do which of the following?

Compare the means of separate populations.

Determine the ability of one variable to predict another.

Compare the significance of multiple variables.

Test the relationship between five or more variables.

Describe the variance within a population.

Explanation

A t test is used to compare the means of different groups. A t test score describes the likelihood that the difference in means between two groups is due to chance. The null hypothesis assumes the two sets are equal however, one can reject the null hypothesis with a p value within a particular confidence level.

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