Mathematics, 19.05.2020 02:21 Sruyle51230
Contaminants such as trihalomethanes (THMs). The Water Department takes 200 samples and estimates that the concentration of THMs in your drinking water is 3.5 ppb (parts per billion), with a standard deviation of 0.2 ppb. Assuming the samples were random and unbiased, how much confidence can you have in this data?
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Contaminants such as trihalomethanes (THMs). The Water Department takes 200 samples and estimates th...
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