The Environmental Protection Agency, EPA in 2016, issued guidelines stating that Perfluorooctanoic acid (PFOA) in drinking water should be less than 700 part per trillion (ppt). Forty nine samples from the same area were collected and the average of the PFOA was 592 ppt, with a standard deviation of 350 ppt. At 1% significance level, can you conclude that the water from that area is safe to drink as per the EPA standard? State the hypothesis, calculate the statistical test (Round to three decimal places), find the p-value (Round to three decimal places) then write your conclusion in the context of the problem.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
The Environmental Protection Agency, EPA in 2016, issued guidelines stating that Perfluorooctanoic acid (PFOA) in drinking water should be less than 700 part per trillion (ppt). Forty nine
samples from the same area were collected and the average of the PFOA was 592 ppt, with a standard deviation of 350 ppt. At 1% significance level, can you conclude that the water from
that area is safe to drink as per the EPA standard?
State the hypothesis, calculate the statistical test (Round to three decimal places), find the p-value (Round to three decimal places) then write your conclusion in the context of the
problem.
Transcribed Image Text:The Environmental Protection Agency, EPA in 2016, issued guidelines stating that Perfluorooctanoic acid (PFOA) in drinking water should be less than 700 part per trillion (ppt). Forty nine samples from the same area were collected and the average of the PFOA was 592 ppt, with a standard deviation of 350 ppt. At 1% significance level, can you conclude that the water from that area is safe to drink as per the EPA standard? State the hypothesis, calculate the statistical test (Round to three decimal places), find the p-value (Round to three decimal places) then write your conclusion in the context of the problem.
Expert Solution
steps

Step by step

Solved in 3 steps with 1 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman