Answered: Calculate a 95% confidence interval…

Name: Julia enjoys jogging. She has been jogging over a period of several ye
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Description: Julia enjoys jogging. She has been jogging over a period of several years, during which time her physical condition has remained constantly good. She jogs 2 miles per day with a population standard deviation of σ= 1.8 minutes. During the past year, J

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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Julia enjoys jogging. She has been jogging over a period of several years, during which time her physical condition has remained constantly good. She jogs 2 miles per day with a population standard deviation of σ= 1.8 minutes. During the past year, Julia recorded a sample of 90 of her runs with a sample mean x̄=15.6 minutes.Let μbe the mean jogging time for the entire distribution of Julia’s 2 mile running times. Calculate a 95% confidence interval forμ.

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