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Mathematics, 06.12.2019 04:31 garciavergaraana
Use the given information to find the number of degrees of freedom, the critical values chi subscript upper l superscript 2 and chi subscript upper r superscript 2, and the confidence interval estimate of sigma. it is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. nicotine in menthol cigarettes 98% confidence; nequals28, sequals0.22 mg.
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