The amount of sewage and industrial pollutants dumped into a body of water affects the health of
Question:
a. Place a 95% confidence on the mean dissolved oxygen level during the 2-month period.
b. Using the confidence interval from part (a), does the mean oxygen level appear to be less than 5 ppm?
c. Test the research hypothesis that the mean oxygen level is less than 5 ppm. What is the level of significance of your test? Interpret your findings.
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Related Book For
An Introduction To Statistical Methods And Data Analysis
ISBN: 9781305465527
7th Edition
Authors: R. Lyman Ott, Micheal T. Longnecker
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