Answer Happy

A survey of 2277 adults, 427 donated blood
A survey of 2277 adults in a certain large country aged 15 and older conducted by a reputable poling organization found that 427 have donated blood in the past two years. Complete parts (a) through (c) below Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table page 2) (a) Obtain a point estimate for the population proportion of adults in the country aged 15 and older who have donated blood in the past two years, p= 188 (Round to three decimal places as needed) (b) Verity that the requirements for constructing a confidence interval about p are satisfied The sample can be assumed to be a simple random sample, the value of no(1-0) - 347.598, which is greater than or equal to 10, and the sample size can be assumed to be less than or equal to 5% of the population size, (Round to three decimal places as needed.) (c) Construct and interpret a 90% confidence interval for the population proportion of adults in the country who have donated blood in the past two years. Select the correct choice below and fill in any answer boxes within your choice. Type integers or decimals rounded to three decimal places as needed. Use ascending order) OA. There is a % probability the proportion of adults in the country aged 18 and older who have donated blood in the past two years is between and OB. We are 80% confident the proportion of adults in the country aged 18 and older who have donated blood in the past two years is between and