The specific gravities (S.G.) of a number of radio-active components have been determined. The masses of the components have been found accurately, by weighing them, but their geometry is complex and the volumes have been found by using the water- displacement method. 18-7 18-3 18.4 18.9 18-8 18-6 192 18.9 19.8 18-8 17:0 125 19:3 (a) Give details of the likely concerns associated with this process. (b) Perform a simple Q-test of the data determine any outliers. (c) Using those data that you are confident are reliable, calculate the mean S.G. to 4 s.f. (d) Using those data that you are confident are reliable, calculate the standard deviation associated with the S.Gs to 3 s.f.
The specific gravities (S.G.) of a number of radio-active components have been determined. The masses of the components have been found accurately, by weighing them, but their geometry is complex and the volumes have been found by using the water- displacement method. 18-7 18-3 18.4 18.9 18-8 18-6 192 18.9 19.8 18-8 17:0 125 19:3 (a) Give details of the likely concerns associated with this process. (b) Perform a simple Q-test of the data determine any outliers. (c) Using those data that you are confident are reliable, calculate the mean S.G. to 4 s.f. (d) Using those data that you are confident are reliable, calculate the standard deviation associated with the S.Gs to 3 s.f.
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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
Transcribed Image Text:2.
The specific gravities (S.G.) of a number of radio-active components have been
determined. The masses of the components have been found accurately, by weighing
them, but their geometry is complex and the volumes have been found by using the water-
displacement method.
18-7
18-3
18-4
18.9
18-8
18.6
19-2
18.9
19-8
18-8
17:0
19-5
19.3
(a)
Give details of the likely concerns associated with this process.
(b)
Perform a simple Q-test of the data to determine any outliers.
(c)
Using those data that you are confident are reliable, calculate the mean S.G. to 4 s.f.
(d)
Using those data that you are confident are reliable, calculate the standard deviation
associated with the S.Gs to 3 s.f.
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