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A study is done to estimate the proportion of people who finish high school, using a random sample of adults, and they are interested to
A study is done to estimate the proportion of people who finish high school, using a random sample of adults, and they are interested to see if it is still 0.85 like it was 30 years ago.They produce a 95% confidence interval for the population proportion. The interval is found to be (0.89, 0.92). Which of the following statements would be true?
A.The 99% confidence interval would be wider.B.The 99% confidence interval would be narrower.
C.The 90% confidence interval would be wider.D.There's not enough information to tell.
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