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1. Measurements of the acidity (pH) of rain samples were recorded at 40 sites in an industrial region. The mean pH was 4
Posted: Mon May 09, 2022 12:14 pm
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1. Measurements of the acidity (pH) of rain samples were recorded at 40 sites in an industrial region. The mean pH was 4.2, and it is known that standard deviation o=0.8 a) Determine a point estimate for the population mean. b) Construct a 95% confidence interval for the population mean. Explain what the confidence interval tells you. c) Construct a 99% confidence interval for the population mean. Explain what the confidence interval tells you.