College Statistics Quiz
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HYPOTHESIS TESTING
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A factory's wastewater is tested to determine if the mean concentration of a pollutant exceeds the legally permissible limit of 100 parts per million (ppm). The regulatory agency sets up the hypotheses as H₀: μ ≤ 100 versus Hₐ: μ > 100. After analyzing water samples, the agency fails to reject the null hypothesis. If, in fact, the factory's mean pollutant level is 115 ppm, which error has been made and what is the consequence?
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