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In a survey of 1037 adults from the US age 65 and over,643 were concern about...

In a survey of 1037 adults from the US age 65 and over,643 were concern about getting flu.

a) Find a point estimate for the population proportion P of those concerned about getting the flu.

b) Construct a 95% confidence interval for the population proportion. What does this interval say to you?

c) Find the minimum sample size needed to estimate the population proportion at the 99% confidence level in order to ensure that the estimate is accurate within 4% of the population proportion.

Math   Statistics-And-Probability   
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