Question

a survey of 2093 adults in a certain large county aged 18 and older conducted by a reputable polling organization found that 404 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}=square) (round to three decimal places as needed)

Explanation:

Step1: Calculate the sample proportion

The formula for the sample proportion \(\hat{p}\) is \(\hat{p}=\frac{x}{n}\), where \(x\) is the number of successes (in this case, the number of adults who have donated blood) and \(n\) is the sample size.
Here, \(x = 404\) and \(n=2053\).
So, \(\hat{p}=\frac{404}{2053}\)

Step2: Perform the division

\(\frac{404}{2053}\approx0.197\) (rounded to three decimal places)

Answer:

\(0.197\)