(25.3-9) Find a 99% confidence interval for the mean of the copper content of a brass alloy sampled from a normal population of unknown variance. The sample data are (in %): 66, 66, 65, 64, 66, 67, 64, 65, 63, 64.

(25.3-9) Find a 99% confidence interval for the mean of the copper content of a brass alloy sampled from a normal population of unknown variance. The sample data are (in %): 66, 66, 65, 64, 66, 67, 64, 65, 63, 64.

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter2: Basic Statistical Analysis With Excel

Section: Chapter Questions

Problem 5P

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(25.3-9) Find a 99% confidence interval for the mean of the copper content of a brass alloy
sampled from a normal population of unknown variance. The sample data are (in %): 66, 66, 65, 64, 66,
67, 64, 65, 63, 64.

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