Education Technology

Is It Standard?

Activity Overview

Students will test a claim about the standard deviation by comparing the χ2 value to the critical value.

Key Steps

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    After a review of the chi-square distribution and the chi-square value, students are led through an example, step-by-step, to test a claim about standard deviation.

    Students will determine the null and alternative hypothesis, calculate the chi-square value and critical value, and graph the chi-square distribution to see the critical region. Multiple choice questions are used on the worksheet to allow students to evaluate their progress and understanding of the steps of the problem.

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    Discuss the material from the activity pages with students as needed.