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standard deviation

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.13QAP

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Question

Student A determines the percent acetic acid in their sample to be 4.31% and they report a standard deviation of 0.57. Student B also reports a value of 4.31 % acetic acid, with a standard deviation of 1.2. Which student (A or B) has the more reliable determination? Briefly, 1 - 2 sentences,

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