Question

A survey of 2282 adults in a certain large country aged 18 and older conducted by a reputable polling organization found that 416 have donated blood in the past two years.

Obtain a point estimate for the population proportion of adults in the country aged 18 and older who have donated blood in the past two years. ​(Round to three decimal places as​ needed.)

​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.)

A. We are ___% confident the proportion of adults in the country aged 18 and older who have donated blood in the past two years is between ___ and ___.

B. There is a nothing​ ___% chance the proportion of adults in the country aged 18 and older who have donated blood in the past two years is between ___ and ___.

Answer 1

A. We are 90%  confident the proportion of adults in the country aged 18 and older who have donated blood in the past two years is between 0.169 and 0.195

( please try 0.169 and 0.196 if above comes wrong)