O Points: 0 of 1 Save A survey of 2280 adults in a certain large country aged 18 and older conducted by a reputable polling organization found that 429 have donated blood in the past two years. Complete parts (a) through (c) below. E Click here to view the standard normal distribution table (page 1), E 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 18 and older who have donated blood in the past two years. p= (Round to three decimal places as needed.) Incorrect: 1 K