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A study is to be made to estimate the proportion of residents of a certain city and its suburbs who favor the construction of a nuclear power plant near the city. How large sample is needed if one wishes to be at least 90% confident that the estimate is withi 0.06 of the true proportion of residents who favor the construction of the nuclear power plant?

A study is to be made to estimate the proportion of residents of a certain city and its suburbs who favor the construction of a nuclear power plant near the city. How large sample is needed if one wishes to be at least 90% confident that the estimate is withi 0.06 of the true proportion of residents who favor the construction of the nuclear power plant?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
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A study is to be made to estimate the proportion of residents of a certain city and its suburbs who favor the construction of a nuclear power plant near the city. How large a sample is needed if one wishes to be at least 90% confident that the estimate is within 0.06 of the true proportion of residents who favor the construction of the nuclear power plant? Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. The sample should be people. (Round up to the nearest whole number.)
Transcribed Image Text:A study is to be made to estimate the proportion of residents of a certain city and its suburbs who favor the construction of a nuclear power plant near the city. How large a sample is needed if one wishes to be at least 90% confident that the estimate is within 0.06 of the true proportion of residents who favor the construction of the nuclear power plant? Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. The sample should be people. (Round up to the nearest whole number.)
A manufacturer of MP3 players conducts a set of comprehensive tests on the electrical functions of its product. All MP3 players must pass all tests prior to being sold. Of a random sample of 700 MP3 players, 28 failed one or more tests. Find a 90% confidence interval for the proportion of MP3 players from the population that pass all tests. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. The 90% confidence interval is <p< (Round to three decimal places as needed.)
Transcribed Image Text:A manufacturer of MP3 players conducts a set of comprehensive tests on the electrical functions of its product. All MP3 players must pass all tests prior to being sold. Of a random sample of 700 MP3 players, 28 failed one or more tests. Find a 90% confidence interval for the proportion of MP3 players from the population that pass all tests. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. The 90% confidence interval is <p< (Round to three decimal places as needed.)
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