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The EPA's limit for lead in drinking water is 15 mg/L. Twenty samples are measured and a mean of 15.1 ) vith standard deviation of 0.3 (s) are determined. Can you be 95% confident that the lead concentration is above the limit? As always, show your work and explain your choice of t value

The EPA's limit for lead in drinking water is 15 mg/L. Twenty samples are measured and a mean of 15.1 ) vith standard deviation of 0.3 (s) are determined. Can you be 95% confident that the lead concentration is above the limit? As always, show your work and explain your choice of t value

MATLAB: An Introduction with Applications
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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The EPA's limit for lead in drinking water is 15 mg/L. Twenty samples are measured and a mean of 15.1 () with standard deviation of 0.3 (s) are determined. Can you be 95% confident that the lead concentration is above the limit? As always, show your work and explain your choice of t value
Transcribed Image Text:The EPA's limit for lead in drinking water is 15 mg/L. Twenty samples are measured and a mean of 15.1 () with standard deviation of 0.3 (s) are determined. Can you be 95% confident that the lead concentration is above the limit? As always, show your work and explain your choice of t value
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