Author Question: A population proportion is to be estimated from the sample described. Approximate the 95% confidence ... (Read 148 times)

K@ · **on:** Jan 18, 2020

Question 1

A population proportion is to be estimated from the sample described. Approximate the 95% confidence interval. Round your answer to four decimal places, if necessary.

Sample size = 3025, sample proportion = 0.89
◦ 0.8718 < p < 0.8898
◦ 0.882 < p < 0.898
◦ 0.8898 < p < 0.8902
◦ 0.8786 < p < 0.9014

Question 2

A population proportion is to be estimated from the sample described. Approximate the 95% confidence interval. Round your answer to four decimal places, if necessary.

A researcher wishes to estimate the proportion of college students who cheat on exams. A poll of 520 college students showed that 16% of them had, or intended to, cheat on examinations. Find the 95% confidence interval.
◦ 0.1373 < p < 0.1827
◦ 0.1278 < p < 0.1922
◦ 0.1161 < p < 0.2039
◦ 0.1586 < p < 0.1614

katieost · **Reply #1 on:** Jan 18, 2020

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