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Water contents in oil was measured 4 times by each of two methods with the following results: Method 1: 31.40, 31.24, 31.18, 31.43 ppm. Method 2: 30.70, 29.49, 30.01, 30.15 ppm. Are the precisions (Standard deviations) * significantly different at the 95% confidence level? Both precision and accuracy are same O They are not significantly different. O They are significantly different. O F calculated < F table, so standard deviations are significantly different. O

Water contents in oil was measured 4 times by each of two methods with the following results: Method 1: 31.40, 31.24, 31.18, 31.43 ppm. Method 2: 30.70, 29.49, 30.01, 30.15 ppm. Are the precisions (Standard deviations) * significantly different at the 95% confidence level? Both precision and accuracy are same O They are not significantly different. O They are significantly different. O F calculated < F table, so standard deviations are significantly different. O

Chemistry
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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Water contents in oil was measured 4 times by each of two methods with the following results: Method 1: 31.40, 31.24, 31.18, 31.43 ppm. Method 2: 30.70, 29.49, 30.01, 30.15 ppm. Are the precisions (Standard deviations) * significantly different at the 95% confidence level? Both precision and accuracy are same O They are not significantly different. O They are significantly different. O F calculated < F table, so standard deviations are significantly different. O 4 Predict the voltage of the cell when the Saturated (KCI) Calomel electrode is connected to the negative terminal of the voltmeter whereas the standard Ag/AgCl reference electrode (Cl ion activity equal to unity) is connected to * ?the positive terminal of the voltmeter -0.222 V O -0.019 V O 0.044 V O 0.046 V O
Transcribed Image Text:Water contents in oil was measured 4 times by each of two methods with the following results: Method 1: 31.40, 31.24, 31.18, 31.43 ppm. Method 2: 30.70, 29.49, 30.01, 30.15 ppm. Are the precisions (Standard deviations) * significantly different at the 95% confidence level? Both precision and accuracy are same O They are not significantly different. O They are significantly different. O F calculated < F table, so standard deviations are significantly different. O 4 Predict the voltage of the cell when the Saturated (KCI) Calomel electrode is connected to the negative terminal of the voltmeter whereas the standard Ag/AgCl reference electrode (Cl ion activity equal to unity) is connected to * ?the positive terminal of the voltmeter -0.222 V O -0.019 V O 0.044 V O 0.046 V O
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