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Is college worth it?: A poll was conducted to determine why Americans decide not to go to college. Of the 324 Americans who didn't go to college survey surveyed, 49% decided not to go to college because they couldn't afford it. a) Calculate a 90% confidence interval for the proportion of Americans who decide to not go to college because they couldn't afford it, and interpret the interval in context. Round your answers to 4 decimal places. lower bound: 4442 upper bound:5358 Interpret the confidence interval in context: 90% of Americans choose not to go to college because they cannot afford it We are 90% confident that the proportion of all Americans who choose not to go to college because they cannot afford it is contained within our confidence interval We are 90% confident that our confidence interval contains the sample proportion of Americans who choose not to go to college because they cannot afford it b) Suppose we wanted the margin of error for the 90% confidence level to be about 1.5%. What sample size would you recommend for the survey? Round your answer appropriately. A survey should include at least 3024 X people. Submit All Parts

Is college worth it?: A poll was conducted to determine why Americans decide not to go to college. Of the 324 Americans who didn't go to college survey surveyed, 49% decided not to go to college because they couldn't afford it. a) Calculate a 90% confidence interval for the proportion of Americans who decide to not go to college because they couldn't afford it, and interpret the interval in context. Round your answers to 4 decimal places. lower bound: 4442 upper bound:5358 Interpret the confidence interval in context: 90% of Americans choose not to go to college because they cannot afford it We are 90% confident that the proportion of all Americans who choose not to go to college because they cannot afford it is contained within our confidence interval We are 90% confident that our confidence interval contains the sample proportion of Americans who choose not to go to college because they cannot afford it b) Suppose we wanted the margin of error for the 90% confidence level to be about 1.5%. What sample size would you recommend for the survey? Round your answer appropriately. A survey should include at least 3024 X people. Submit All Parts

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Is college worth it?: A poll was conducted to determine why Americans decide not to go to college. Of the 324 Americans who didn't go to college survey surveyed, 49% decided not to go to college because they couldn't afford it. a) Calculate a 90% confidence interval for the proportion of Americans who decide to not go to college because they couldn't afford it, and interpret the interval in context. Round your answers to 4 decimal places. lower bound: 4442 upper bound: .5358 Interpret the confidence interval in context: 90% of Americans choose not to go to college because they cannot afford it O We are 90% confident that the proportion of all Americans who choose not to go to college because they cannot afford it is contained within our confidence interval We are 90% confident that our confidence interval contains the sample proportion of Americans who choose not to go to college because they cannot afford it b) Suppose we wanted the margin of error for the 90% confidence level to be about 1.5%. What sample size would you recommend for the survey? Round your answer appropriately. A survey should include at least 3024 X people. Submit All Parts
Transcribed Image Text:Is college worth it?: A poll was conducted to determine why Americans decide not to go to college. Of the 324 Americans who didn't go to college survey surveyed, 49% decided not to go to college because they couldn't afford it. a) Calculate a 90% confidence interval for the proportion of Americans who decide to not go to college because they couldn't afford it, and interpret the interval in context. Round your answers to 4 decimal places. lower bound: 4442 upper bound: .5358 Interpret the confidence interval in context: 90% of Americans choose not to go to college because they cannot afford it O We are 90% confident that the proportion of all Americans who choose not to go to college because they cannot afford it is contained within our confidence interval We are 90% confident that our confidence interval contains the sample proportion of Americans who choose not to go to college because they cannot afford it b) Suppose we wanted the margin of error for the 90% confidence level to be about 1.5%. What sample size would you recommend for the survey? Round your answer appropriately. A survey should include at least 3024 X people. Submit All Parts
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