(Answered) Estimate population proportion with a sample proportion

Engineering

Problem: Determine the margin of error for a 90% confidence interval to estimate the population proportion with a sample proportion equal to 0.90 for the following sample sizes.

a. n=125

b. n=220

c. n=250

a. The margin of error for a 90% confidence interval to estimate the population proportion with a sample proportion equal to 0.90 and a sample size n=125 is _____ ?

b. The margin of error for a 90% confidence interval to estimate the population proportion with a sample proportion equal to 0.90 and a sample size n=220 is _____ ?

c. The margin of error for a 90% confidence interval to estimate the population proportion with a sample proportion equal to 0.90 and a sample size n=250 is _____ ? Explain your answer and provide examples.

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