Question 1
A population proportion is to be estimated from the sample described. Approximate the margin of error for the 95% confidence interval. Round your answer to four decimal places, if necessary.
A poll of 1000 voters in one district showed that 62% of them would favor stricter gun control laws. Find the margin of error for the 95% confidence interval for this study.
◦ 0.0307
◦ 0.001
◦ 0.0153
◦ 0.0217
Question 2
A population proportion is to be estimated from the sample described. Approximate the margin of error for the 95% confidence interval. Round your answer to four decimal places, if necessary.
A medical researcher wishes to estimate what proportion of babies born at a particular hospital are born by Caesarean section. In a random sample of 64 births at the hospital, 26% were Caesarean sections. Find the margin of error for the 95% confidence interval.
◦ 0.0548
◦ 0.1097
◦ 0.0775
◦ 0.0137
Anatomy of the Lotka-Volterra equations for predator-prey population growth.
A Passive Continental Margin
Population Losses in the South, 1920–1930
Comparing Prison Inmates With The U.S. Population
Human Population Growth
Predicted Proportions in a Population