(b) Construct a confidence interval for the proportion of people who performed volunteer work during the past year. Round the answer to at least three decimal places.A confidence interval for the proportion of people who performed volunteer work during the past year is .

Volunteering: The General Social Survey asked 1299 people whether they performed any volunteer work during the past year. A total of 528 people said they did. Part 1 of 3 (a) Find a point estimate for the proportion of people who performed volunteer work during the past year. Round the answer to at least three decimal places. The point estimate for the proportion of people who performed volunteer work during the past year is | 0.406 | Part: 1 /3 N Part 2 of 3 (b) Construct a 99% confidence interval for the proportion of people who performed volunteer work during the past year. Round the answer to at least three decimal places. A 99% confidence interval for the proportion of people who performed volunteer work during the past year s Jer