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(a) Estimate the percentage of workers in Montreal who use public transport to commute to work. Give your answer in percentages out the percentage sign, and to four significant digits). (b) Find a 95% confidence interval for the percentage of workers in Montreal using public transport to commute to work. Use the ple proportion in your estimate of the standard error. Provide the upper and lower bounds for your confidence interval. Give your ver in percentages (without the percentage sign, and to four significant digits) ( =: You can earn partial credit on this problem. preview answers

(a) Estimate the percentage of workers in Montreal who use public transport to commute to work. Give your answer in percentages out the percentage sign, and to four significant digits). (b) Find a 95% confidence interval for the percentage of workers in Montreal using public transport to commute to work. Use the ple proportion in your estimate of the standard error. Provide the upper and lower bounds for your confidence interval. Give your ver in percentages (without the percentage sign, and to four significant digits) ( =: You can earn partial credit on this problem. preview answers

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 2GP
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Suppose in 2011 a survey of 1159 workers in the city of Montreal found that 254 used public transport to commute to work. Part (a) Estimate the percentage of workers in Montreal who use public transport to commute to work. Give your answer in percentages (without the percentage sign, and to four significant digits). Part (b) Find a 95% contidence interval for the percentage of workers in Montreal using public transport to commute to work. Use the sample proportion in your estimate of the standard error. Provide the upper and lower bounds for your confidence interval. Give your answer in percentages (without the percentage sign, and to four significant digits) ( Note: You can earn partial credit on this problem. preview answers
Transcribed Image Text:Suppose in 2011 a survey of 1159 workers in the city of Montreal found that 254 used public transport to commute to work. Part (a) Estimate the percentage of workers in Montreal who use public transport to commute to work. Give your answer in percentages (without the percentage sign, and to four significant digits). Part (b) Find a 95% contidence interval for the percentage of workers in Montreal using public transport to commute to work. Use the sample proportion in your estimate of the standard error. Provide the upper and lower bounds for your confidence interval. Give your answer in percentages (without the percentage sign, and to four significant digits) ( Note: You can earn partial credit on this problem. preview answers
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