The following standardization data were provided for a series of external standards of Cd²+ that had been buffered to a pH of 4.6.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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> The following standardization data were provided
for a series of external standards of Cd²+ that had
been buffered to a pH of 4.6.
[Cd²*]
15.4
30.4
44.9
59.0
72.7
86.0
Smeas (nA)
4.8
11.4
18.2
26.6
32.3
37.7
(a) Determine the standardization relationship by a
linear regression analysis, and report the
confidence intervals for the slope and y-intercept.
+ B X
Smeas = -2.69 + 0.477 [Cd²+]
Slope = 0.477±0.036
y-intercept = -2.69±2.02
A
%3D
%3D
Transcribed Image Text:> The following standardization data were provided for a series of external standards of Cd²+ that had been buffered to a pH of 4.6. [Cd²*] 15.4 30.4 44.9 59.0 72.7 86.0 Smeas (nA) 4.8 11.4 18.2 26.6 32.3 37.7 (a) Determine the standardization relationship by a linear regression analysis, and report the confidence intervals for the slope and y-intercept. + B X Smeas = -2.69 + 0.477 [Cd²+] Slope = 0.477±0.036 y-intercept = -2.69±2.02 A %3D %3D
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