Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 21 Mar 2018 My Price 5.00

Spokane River

Samples of fish taken from the Spokane River were tested for lead content in milligrams per kilogram. Because most of the lead is thought to be concentrated in bones and fat, tests were carried out on filets, which are more representative of the fish that people actually consume. A sample of 22 rainbow trout filets had mean lead content 0.16 and standard deviation 0.11; a sample of 20 largescale suckers had mean 0.09 and standard deviation 0.06.7 Use the formula

and the fact that the two-sample t multiplier for a fairly large combined sample size is approximately 2 to produce a 95% confidence interval for the difference between mean lead contents, trout minus suckers.

 

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Maurice Tutor
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Status NEW Posted 21 Mar 2018 07:03 AM My Price 5.00

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