Exam 11: Inferences for Population Standard Deviations

$\text { Use the chi-square table to find the required } \chi ^ { 2 } \text {-value(s). }$ -For a $\chi ^ { 2 }$ -curve with 30 degrees of freedom, determine the two $\chi ^ { 2 }$ -values that divide the area under the curve into a middle $0.99$ area and two outside $0.005$ areas.

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