A sample of 200 observations selected from a population produced a sample proportion equal to .91. a.
Question:
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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n 200 p 91 1 p 1 p 1 97 09 sp p n 9109200 02023611 a The 90 confidence interval for p is p zs p 9...View the full answer
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