Question: A sample of 200 observations selected from a population produced a sample proportion equal to .91. a. Make a 90% confidence interval for p. b.

A sample of 200 observations selected from a population produced a sample proportion equal to .91.
a. Make a 90% confidence interval for p.
b. Construct a 95% confidence interval for p.
c. Make a 99% confidence interval for p.
d. Does the width of the confidence intervals constructed in parts a through c increase as the confidence level increases? If yes, explain why.

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