SOLUTION: The Environmental Protection Agency (EPA) requires that cities monitor over 80 contaminants in
their drinking water. Samples from the Lake Huron Water Treatment Plant gave the res
Algebra.Com
Question 321071: The Environmental Protection Agency (EPA) requires that cities monitor over 80 contaminants in
their drinking water. Samples from the Lake Huron Water Treatment Plant gave the results shown here. Only the range is reported, not the mean (presumably the mean would be the midrange). For each substance, estimate the standard deviation σ by using the methods shown in Table 8.11in section 8.7.
(b) Why might an estimate of σ be helpful in planning future water sample testing?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Data not posted.
Cheers,
Stan H.
RELATED QUESTIONS
hello,
I have a question;
A representative of the Environmental Protection Agency (EPA) (answered by stanbon)
Each year the US Environmental Protection Agency (EPA) releases fuel economy data on cars (answered by Boreal)
Recent information published by the U.S. Environmental Protection Agency indicates that... (answered by stanbon)
A telephone number consists of seven digits, the first three representing the ex-... (answered by ikleyn)
The Environmental Protection Agency lists among its "Climate Change Indicators" the... (answered by Boreal)
I am going crazy trying to solve this. Please help.
Assume that federal regulations... (answered by stanbon)
Please help me. I need desperate help.
1. The EPA is concerned about the quality of... (answered by stanbon)
Polychlorinated biphenyl (PCB) is among a group of organic pollutants found in a variety... (answered by stanbon)
As an employee for the environmental protection agency, you have been to examine the... (answered by stanbon)