Listed below are speeds (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at 3:30 P.M. on a weekday. Use the sample data to constructa95%confidence interval estimate of the population standard deviation. 606161556155595859695866 The confidence interval estimate is mi/h <σ< mi/h.(Round to one decimal place as needed.) Determine if the confidence interval describes the standard deviation for all times during the week.

Given: Sample Sizen=12 Sample MeanX is calculated as: X=60+⋯+6612=72212=60.167 Sample Standard…

Answered: Listed below are speeds (mi/h)…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Listed below are speeds (mi/h) measured from traffic on a busy highway. This simple random sample was obtained at 3:30 P.M. on a weekday. Use the sample data to construct

95%

confidence interval estimate of the population standard deviation.

The confidence interval estimate is

mi/h <σ< mi/h.

(Round to one decimal place as needed.)

Determine if the confidence interval describes the standard deviation for all times during the week.

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