In a simple random sample of 1000 people age 20 and over in acertain? country, the proportion with a certain disease was foundto be 0.160 ?(or 16.0?%). Complete parts? (a) through? (d)below.
A. What is the standard error of the estimate of the proportionof all people in the country age 20 and over with the? disease?
B. Find the margin of? error, using a? 95% confidence? level,for estimating this proportion.
C. Report the? 95% confidence interval for the proportion of allpeople in the country age 20 and over with the disease. m=___
The? 95% confidence interval for the proportion is (_,_)
D. According to a government? agency, nationally, 17.1?% of allpeople in the country age 20 or over have the disease. Does theconfidence interval you found in part? (c) support or refute this?claim? Explain.
The confidence interval (refutes OR supports) this? claim, sincethe value _ (is OR is not) contained within the interval for theproportion.
