15 April 2010
To: ChE, BioE, EnvE 213 Class
From: Professor Koretsky
Subject: Homework #3
___________________________________________________________________________
Below is the third homework assignment of the quarter.
Please conform to the format described in
the class syllabus.
This assignment is due 22 April 2010 at 4 PM.
If you have any questions, feel
free to see me during office hours, by appointment or when my door is open.
1.
Using the data in Lapin 1019, construct:
A.
Construct a 95% confidence interval of the mean lifetime advantage of the new battery.
B. Construct a 95% confidence interval of the standard deviation of the lifetime advantage
of the new battery.
C. Construct a 99% confidence interval of the mean lifetime advantage of the new battery.
D. Construct a 99% confidence interval of the standard deviation of the lifetime advantage
of the new battery.
2. An article in the
Transactions of the American Fisheries Society
reports the results of a study
to investigate the mercury contamination in largemouth bass. A sample of fish was selected
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 Winter '08
 Staff
 Statistics, Normal Distribution, Standard Deviation, Mercury contamination

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