In November 2024
Answer to Question #287055 in Organic Chemistry for BASANG
The determination of copper in a seawater sample gave a mean value of 77.81 mg/L and a standard deviation ss of 1.74 mg/L. (Note: the insignificant figures were retained here because these results are used below in another calculation.) How many samples must be analyzed to obtain a relative standard deviation of 1.7% in the results at the 95% confidence level? (Show your solution)
7 samples
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#339914 on Dec 2023
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