Answer to Question #281984 in Organic Chemistry for Cejay

Question

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)

Answer 1

7 samples