The following data were obtained for repetitive mass measurements of 1.004-g standard mass on a top-loading balance: 1.002, 1.000, 0.997, 1.004, 1.003, 1.001, 1.005, 0.999, 1.007. a. assuming the noise is random, calculate the signal-to-noise ratio for the balance. b. How many measurements would have to be averaged to obtain a S/N of 500?

The following data were obtained for repetitive mass measurements of 1.004-g standard mass on a top-loading balance: 1.002, 1.000, 0.997, 1.004, 1.003, 1.001, 1.005, 0.999, 1.007. a. assuming the noise is random, calculate the signal-to-noise ratio for the balance. b. How many measurements would have to be averaged to obtain a S/N of 500?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter8: Sampling, Standardization, And Calibration

Section: Chapter Questions

Problem 8.27QAP

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both questions already have the answers but it need's me to show all the work and I don't know how to put it togther or in other words how to show the work for both questions. :)