Education Technology

Is It Standard?

Published on 08/28/2010

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 formula used to calculate a chi-square value, students are led through an example, step-by-step, to test a claim about standard deviation.

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    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.