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Listed below are the lead concentrations in pig/g measured in different traditional medicines. Use a 0 01 significance level to test the claim that the

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Listed below are the lead concentrations in pig/g measured in different traditional medicines. Use a 0 01 significance level to test the claim that the mean lead concentration for all such medicines is less than 15 ug/g. Assume that the sample is a simple random sample. 10.5 19.5 135 5 105 15 5 9 22 10 135 0 H1 H > 15 ugig H H

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