A survey of 2323 adults in a certain large country aged 18 and older conducted by a reputable polling organization found that 423 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 18 and older who have donated blood in the past two years.
$\hat{p}=$
(Round to three decimal places as needed.)
Answer
Final Answer: The point estimate for the population proportion of adults in the country aged 18 and older who have donated blood in the past two years is \(\boxed{0.182}\).
Step 1 ：The point estimate for the population proportion is calculated by dividing the number of successes (in this case, the number of adults who have donated blood) by the total number of observations (in this case, the total number of adults surveyed). So, we need to divide 423 by 2323.
Step 2 ：\(\frac{423}{2323} = 0.18209212225570384\)
Step 3 ：Rounding to three decimal places, we get 0.182.
Step 4 ：Final Answer: The point estimate for the population proportion of adults in the country aged 18 and older who have donated blood in the past two years is \(\boxed{0.182}\).
