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Inferences for Two Populations

Inferences for Two Populations

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Tutorial

Construct Confidence Intervals and Perform Hypothesis Tests for Two Populations

These examples show how to use the TI calculator functions to construct confidence intervals and perform hypothesis tests for proportions and for means in two populations.

2-PropZInt
Use a normal distribution to compute a confidence interval estimate for the difference in proportions between two groups.

2-PropZTest
Use a normal distribution to test a hypothesis about a difference in proportions between two groups.

2-SampTInt
Use sample data from two independent samples to construct a confidence interval estimate of the difference between two population means.

2-SampTTest
Use sample data from two independent samples to test a hypothesis about the difference between two population means.