A survey of 2294 adults in a certain large country aged 18 and older conducted by a reputable polling organization found that 401 have donated blood in the past two years. Complete parts (a) through (c) below.

a) 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.

p=__________ (Round to three decimal places if needed.)

b) Verify that the requirements for constructing a confidence interval about p are satisfied.

The sample 1)__________________ a simple random sample, the value of 2)____________ is ____________, which is 3)______________ 10, and the 4)__________ 5)________________ less than or equal to 5% of the 6)____________ (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.

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 ___________% chance the proportion of adults in the country aged 18 and older who have donated blood in the past two years is between ___ and ______.