A recent survey revealed that out of 120 people, 87 were satisfied with the president's performance. a) Determine the point estimate of the proportion of people who are satisfied with the president's performance.b) Determine the 90% confidence interval for the population's proportion of people who agree with the president's c) To make a larger study, with 95% confidence and an estimation error of 3%, what should the sample size be?

A recent survey revealed that out of 120 people, 87 were satisfied with the president's performance. a) Determine the point estimate of the proportion of people who are satisfied with the president's performance.b) Determine the 90% confidence interval for the population's proportion of people who agree with the president's c) To make a larger study, with 95% confidence and an estimation error of 3%, what should the sample size be?

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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