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7-6. The last result in each set of data in Problem 7-4 may be an outlier. Apply Q test (95% confidence level) to determine whether or not there is a statistical basis for rejection.

7-6. The last result in each set of data in Problem 7-4 may be an outlier. Apply Q test (95% confidence level) to determine whether or not there is a statistical basis for rejection.

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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B. 7-4. Consider the following sets of replicate measurements: *A В *C D *E F 3.5 70.24 0.812 2.7 70.65 0.514 3.1 70.22 0.792 3.0 70.63 0.503 3.1 70.10 0.794 2.6 70.64 0.486 3.3 0.900 2.8 70.21 0.497 2.5 3.2 0.472 Calculate the mean and the standard deviation for each of these six data sets. Consider the 95% confidence interval for each set of data. What does this interval mean? 7-5. Calculate the 95% confidence interval for each set of data in Problem 7-4 if s is a good estimate of o and has a value of: *set A, 0.20; set B, 0.070; *set C, 0.0090, set D, 0.30, *set E, 0.15; set F, 0.015. 7-6. The last result in each set of data in Problem 7-4 may be an outlier. Apply Q test (95% confidence level) to determine whether or not there is a statistical basis for rejection. Reference: Skoo g D West D Hollor CI . Crouch S (20o Fundamentalc of Analytical
Transcribed Image Text:B. 7-4. Consider the following sets of replicate measurements: *A В *C D *E F 3.5 70.24 0.812 2.7 70.65 0.514 3.1 70.22 0.792 3.0 70.63 0.503 3.1 70.10 0.794 2.6 70.64 0.486 3.3 0.900 2.8 70.21 0.497 2.5 3.2 0.472 Calculate the mean and the standard deviation for each of these six data sets. Consider the 95% confidence interval for each set of data. What does this interval mean? 7-5. Calculate the 95% confidence interval for each set of data in Problem 7-4 if s is a good estimate of o and has a value of: *set A, 0.20; set B, 0.070; *set C, 0.0090, set D, 0.30, *set E, 0.15; set F, 0.015. 7-6. The last result in each set of data in Problem 7-4 may be an outlier. Apply Q test (95% confidence level) to determine whether or not there is a statistical basis for rejection. Reference: Skoo g D West D Hollor CI . Crouch S (20o Fundamentalc of Analytical
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