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What is the 95% confidence interval for the mean of the data, assuming

Introductory Chemistry: An Active Learning Approach

6th Edition

ISBN:9781305079250

Author:Mark S. Cracolice, Ed Peters

Publisher:Mark S. Cracolice, Ed Peters

Chapter3: Measurement And Chemical Calculations

Section: Chapter Questions

Problem 128E: In Active Example 3-29 you calculated that you would have to work six weeks to earn enough money to...

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Question

A volumetric calcium analysis on triplicate samples of the blood serum of a patient believed to be suffering from a hyperparathyroid condition produced the following data: mmol Ca/L = 3.55, 3.65, 3.14. What is the 95% confidence interval for the mean of the data, assuming
(a) No prior information about the precision of the analysis?
(b) s → σ = 0.056 mmol Ca/L?

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