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The Center for Urban Transportation Research released a

Introduction to Statistics and Data Analysis (with CengageNOW Printed Access Card) (Available Titles CengageNOW) | 3rd Edition | ISBN: 9780495118732 | Authors: Roxy Peck, Chris Olsen, Jay L. Devore ISBN: 9780495118732 197

Solution for problem 9.76 Chapter Chapter 9

Introduction to Statistics and Data Analysis (with CengageNOW Printed Access Card) (Available Titles CengageNOW) | 3rd Edition

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Introduction to Statistics and Data Analysis (with CengageNOW Printed Access Card) (Available Titles CengageNOW) | 3rd Edition | ISBN: 9780495118732 | Authors: Roxy Peck, Chris Olsen, Jay L. Devore

Introduction to Statistics and Data Analysis (with CengageNOW Printed Access Card) (Available Titles CengageNOW) | 3rd Edition

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Problem 9.76

The Center for Urban Transportation Research released a report stating that the average commuting distance in the United States is 10.9 mi (USA Today, August 13, 1991). Suppose that this average is actually the mean of a random sample of 300 commuters and that the sample standard deviation is 6.2 mi. Estimate the true mean commuting distance using a 99% confidence interval.

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Weeks 7 & 8 Normal Distribution  “The bell Shaped Curve”: describes the shape for some quantitative, continuous random variables  Has two parameters: o  = mean determines the location. o  = standard deviation determines spread, variation, scatter.   The “area” under the curve within a range of X values is equal to proportion of the population within that range of X values

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Chapter Chapter 9, Problem 9.76 is Solved
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Textbook: Introduction to Statistics and Data Analysis (with CengageNOW Printed Access Card) (Available Titles CengageNOW)
Edition: 3
Author: Roxy Peck, Chris Olsen, Jay L. Devore
ISBN: 9780495118732

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The Center for Urban Transportation Research released a