A Municipal Survey on the drinking habits of South Africans estimated the percentage of youth across the country who drink alcohol at least occasionally. Of the 1516 youth interviewed, 985 said that they drank. a. Determine a 95% confidence interval for the proportion of all South Africans who drink alcohol at occasionally. b. Find the margin of error for the estimate of p. c. Obtain a sample size that will ensure a margin of error of at most 0.02 for a 95% confidence interval without guessing for the observed value of p.

A Municipal Survey on the drinking habits of South Africans estimated the percentage of youth across the country who drink alcohol at least occasionally. Of the 1516 youth interviewed, 985 said that they drank. a. Determine a 95% confidence interval for the proportion of all South Africans who drink alcohol at occasionally. b. Find the margin of error for the estimate of p. c. Obtain a sample size that will ensure a margin of error of at most 0.02 for a 95% confidence interval without guessing for the observed value of p.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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