Question: 4. A random sample of n5500 observations from a binomial population produced x5240 successes. a. Find a point estimate for p, and find the margin

4. A random sample of n5500 observations from a binomial population produced x5240 successes.

a. Find a point estimate for p, and find the margin of error for your estimator.

b. Find a 90% confidence interval for p. Interpret this interval.

c. How large a sample is required if you wish to estimate p correct to within .025, with probability equal to .90?

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