Contaminated water: In a sample of 43 water specimens taken

Last updated: 7/14/2022

Contaminated water: In a sample of 43 water specimens taken from a construction site, 27 contained detectable levels of lead. (a) Construct a 99.8% confidence interval for the proportion of water specimens that contain detectable levels of lead. Round the answer to at least three decimal places. A 99.8% confidence interval for the proportion of water specimens that contain detectable levels of lead is (b) Construct an 80% confidence interval for the proportion of water specimens that contain detectable levels of lead. Round the answer to at least three decimal places. An 80% confidence interval for the proportion of water specimens that contain detectable levels of lead is