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4) A group of microbiologists is testing a water sample for level of lead. Test the claim that the water contains level of lead higher

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4) A group of microbiologists is testing a water sample for level of lead. Test the claim that the water contains level of lead higher than the safe guideline of 15 ppb. a) Identify the claim: Identify null hypothesis: b) Discuss Type I error in the context of the problem. c) Discuss Type II error in the context of the problem. d) Evaluate which error is more serious and advise on the level of significance

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