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22.04.2021 •
Mathematics
From a random sample of 1201 Americans, it was discovered that 1139 of them lived in neighborhoods with acceptable levels of carbon monoxide.a.Obtain a point estimate for the proportion of American who live in neighborhoods with acceptable levels of carbon monoxide. b.Construct a 99% confidence interval for the proportion of Americans who live in neighborhoods with acceptable levels of carbon monoxide. c.You wish to conduct your own study to determine the proportion of Americans who live in neighborhoods with acceptable levels of carbon monoxide. What sample size would be needed for the estimateto be within 1.5 percentage points with 99% confidence if you use the estimate in part a.
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