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Finding Critical Values In constructing confidence intervals for σ or σ2, Table A-4 can be used to find the critical values
where k is the number of degrees of freedom and zα/2 critical z score described in Section 7-1. Use this approximation to find the critical values
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- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill