An analysis of a sample containing mercury was performed using a standard procedure and a new procedure. The sample was analyzed 6 times by the new procedure and 8 times by the standard procedure resulting in standard deviations of 0.355 and 0.524 for the new and standard procedures, respectively. If the pooled standard deviation for the data was 0.66 and the tabulated F value at the 95% confidence level was 4.88, The following statement(s) are true: Select one or more: A. The calculated F value is 2.179 B. We are confident that there is no significant statistical C. difference between the results of the two methods D. There is no significant statistical difference between the precision of the two methods The calculated F value is 3.216
An analysis of a sample containing mercury was performed using a standard procedure and a new procedure. The sample was analyzed 6 times by the new procedure and 8 times by the standard procedure resulting in standard deviations of 0.355 and 0.524 for the new and standard procedures, respectively. If the pooled standard deviation for the data was 0.66 and the tabulated F value at the 95% confidence level was 4.88, The following statement(s) are true: Select one or more: A. The calculated F value is 2.179 B. We are confident that there is no significant statistical C. difference between the results of the two methods D. There is no significant statistical difference between the precision of the two methods The calculated F value is 3.216
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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An analysis of a sample containing mercury was performed
using a standard procedure and a new procedure. The sample
was analyzed 6 times by the new procedure and 8 times by the
standard procedure resulting in standard deviations of 0.355 and
0.524 for the new and standard procedures, respectively. If the
pooled standard deviation for the data was 0.66 and the
tabulated F value at the 95% confidence level was 4.88, The
following statement(s) are true:
Select one or more:
A. The calculated F value is 2.179
B. We are confident that there is no significant statistical
C. difference between the results of the two methods
D. There is no significant statistical difference between the
precision of the two methods
The calculated F value is 3.216
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