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The standard deviation of math test scores at one high school

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The standard deviation of math test scores at one high school is 16.1. A teacher claims that the standard deviation of the girls' test scores is smaller than 16.1. A random sample of 22 girls results in scores with a standard deviation of 13.3. Use a significance level of 0.01 to test the teacher's claim. Find the test statistic - chi square, the critical value -chi square and the p value.
Submitted: 7 years ago.
Category: Homework
Expert:  Tom replied 7 years ago.

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