By 10 repeated measurements, the average concentration and standard deviation of Cd2+ indrinking water were determined to 11.6 ± 4.1 ppm. Calculate the 95% confidential interval of thisdata.11.6 1.8 ppm11.62.9 ppm11.6 5. ppm11.6 0.9 ppm11.63.0 ppm

Answered: By 10 repeated measurements, the…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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By 10 repeated measurements, the average concentration and standard deviation of Cd2+ in
drinking water were determined to 11.6 ± 4.1 ppm. Calculate the 95% confidential interval of this
data.
11.6 1.8 ppm
11.62.9 ppm
11.6 5. ppm
11.6 0.9 ppm
11.63.0 ppm

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A 95% confidence interval is a range of values above and below the point estimate within which the true value in the population is likely to lie with 95% confidence.

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