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Contaminated water: In a sample of 44 water specimens taken from a construction site, 27 contained detectable levels of lead.
Part 1 of 3 (a) Construct a $95 \%$ confidence interval for the proportion of water specimens that contain detectable levels of lead. Round the answer to at least three decimal places.
A $95 \%$ confidence interval for the proportion of water specimens that contain detectable levels of lead is $0.471<p<0.757$.
Part: $1 / 3$
Part 2 of 3 (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 $\square$ $<p<$ $\square$ . Skip Part Check Save For Later Submit Assignment - 2024 McGraw Hill LLC. All Rights Reserved. Terms of Use T Privacy Center I Accessibility