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Listed below are the lead concentrations in μ​g/g measured in different traditional medicines. Use a 0.10...

Listed below are the lead concentrations in μ​g/g measured in different traditional medicines. Use a 0.10 significance level to test the claim that the mean lead concentration for all such medicines is less than 18 μ​g/g. Assume that the lead concentrations in traditional medicines are normally distributed.

33, 19, 17.5, 11, 17, 17.5, 14.5, 11.5, 17, 2.5

  

Math   Statistics-And-Probability   
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