Population standard deviation

Reference no: EM1313961

To test whether the population standard deviation differ significantly using Chi-Square test.

Tests in a professor's past statistics classes have scores with a standard deviation equal to 14.1. One of her current classes now has 27 test scores with a standard deviation of 9.3. Use a 0.01 level of significance to test the claim that the standard deviation of this current class is less than 14.1.

Reference no: EM1313961

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Population standard deviation : To test whether the population standard deviation differ significantly using Chi-Square test.

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