Page 3The Environmental Protection Agency regulates the amount of lead in tap water.According to EPA regulations, if lead concentrations exceed 15 ppb in more than 8% of customer faucetssampled then the local Water Department must take "additional steps" such as replacing service lines andinforming the public. Note: ppb means “parts per billion".Suppose that in a particular city a large number of faucets were tested and lead levels recorded and the 80thpercentile was determined to be 16 ppb. Assume that the sample is large enough for the EPA to obtainmeaningful results. Must the water department in this city take "additional steps"? Choose the single answerthat best describes your conclusion and reasoning.a. Yes; additional steps are required because 80% of the faucets tested have a lead level equal to 16 ppb.b. Yes; additional steps are required because at least 20% of the faucets tested have lead levels higher than15 ppb.c. Yes; additional steps are required because at least 80% of the faucets tested have lead levels higher than15 ppb.d. Not enough information is provided to answer this question.

Answered: Image /qna-images/answer/a4144a67-0029-4351-81f9-1246af369a0e.jpg

Answered: Page 3 The Environmental Protection…

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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Write an example of a research study that would be most appropriate for a within subjects ANOVA
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