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Biology, 04.02.2020 03:48 autumnrose02

Awater treatment plant needs to maintain the ph of the water in the reservoir at a certain level. to monitor this, they take 2 oz. of water at 37 locations every hour, measure the ph at each of those locations, and find their average. if the ph level of the reservoir is ok, the results at each location will have varying results, with an average ph of 8.5 and a standard deviation of 0.22.

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Awater treatment plant needs to maintain the ph of the water in the reservoir at a certain level. to...
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