Find the critical value or values of $\chi ^ { 2 }$ based on the given information.
-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 12.9. Use a significance level of 0.01 to test the teacher's claim.

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The Answer of Find the critical value or values of $\chi ^ { 2 }$ based on the given information.
-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 12.9. Use a significance level of 0.01 to test the teacher's claim.

Find the Critical Value or Values Of χ2\chi ^ { 2 }χ2

Find the Critical Value or Values Of $\chi ^ { 2 }$