Atomic absorption analysis for copper concentration of aircraft engine oil gave a value of 8.53 mg Cu/mL based on 10 measurements. Pooled results of similar analysis from 350 different experiments results in a standard deviation s = 0.22 mg Cu/mL. The confidence interval of the measurements at 90% confidence limits is 8.53 ± _____________. * watch the significant numbers. 2 sig

Atomic absorption analysis for copper concentration of aircraft engine oil gave a value of 8.53 mg Cu/mL based on 10 measurements. Pooled results of similar analysis from 350 different experiments results in a standard deviation s = 0.22 mg Cu/mL. The confidence interval of the measurements at 90% confidence limits is 8.53 ± _____________. * watch the significant numbers. 2 sig

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter8: Sampling, Standardization, And Calibration

Section: Chapter Questions

Problem 8.6QAP

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