Find and interpret a 95% confidence interval for the proportion p of US 8th-grade students who drink alcohol. (b) Give the best estimate for p and give the margin of error for the estimate.
Find and interpret a 95% confidence interval for the proportion p of US 8th-grade students who drink alcohol. (b) Give the best estimate for p and give the margin of error for the estimate.
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 58E: What is meant by the sample space of an experiment?
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Drinking A national health organization, concerned about drinking in middle school students, surveyed 220 randomly selected US 8th-grade students and found that 18 of them had had a drink of alcohol in the past month.
(a) Find and interpret a 95% confidence interval for the proportion p of US 8th-grade students who drink alcohol.
(b) Give the best estimate for p and give the margin of error for the estimate.
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