Suppose in 2011 a survey of 1064 workers in the city of Calgary found that 184 used public transport to commute to work. Part (a) Estimate the percentage of workers in Calgary who use public transport to commute to work. Give your answer percentages (without the percentage sign, and to four significant digits). Part (b) Find a 95% confidence interval for the percentage of workers in Calgary 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) (

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Suppose in 2011 a survey of 1064 workers in the city of Calgary found that 184 used public transport to commute to work.
Part (a) Estimate the percentage of workers in Calgary 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% confidence interval for the percentage of workers in Calgary 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) (
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Transcribed Image Text:Suppose in 2011 a survey of 1064 workers in the city of Calgary found that 184 used public transport to commute to work. Part (a) Estimate the percentage of workers in Calgary 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% confidence interval for the percentage of workers in Calgary 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) ( preview answers
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