Education Technology

Statistics: t Distributions
by Texas Instruments

Published on February 20, 2013

Overview

Students compare the t distribution to the standard normal distribution and use the invT command to find critical values for a t distribution.

Key Steps

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    In Problem 1, students explore characteristics of the t distribution by observing the differences between the graphs of the t distribution (red) and the standard normal distribution (blue). They will change the degree of freedom to change the sample size of the graph.

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    In Problem 2, students compare areas of the standard normal distribution and the t distribution by looking at the value of the integrals over a certain interval.

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    In Problem 3, students explore the critical values for a t distribution. They will find the critical values at the 95% level.