in the given data, please show me how to calculate manually the Si. I encircled it using a red ink. I need the answer ASAP
in the given data, please show me how to calculate manually the Si. I encircled it using a red ink. I need the answer ASAP
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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in the given data, please show me how to calculate manually the Si. I encircled it using a red ink. I need the answer ASAP
Transcribed Image Text:4. The fluorescence of each of a series of acidic solutions of quinine was determined five
times. The result are given below
Concentration, ng/L 0
Florescence intensity 4
10
20
30
40
50
22
44
60
75
104
(arbitrary units)
20
46
63
81
109
4
21
45
60
79
107
22
44
63
78
101
21
44
63
77
105
STDV 0.707107 0.83666 0.894427 | 1.643168 2.236068 3.0331502
Determines the slopes and intercepts of the unweighted and weighted regression lines.
4. Unweighted
(xi-X)(yi-Y) (xi-X)?
(xi-X)
-25
y
(yi-Y)
Slope
-48.4667
1211.667
625
1.981714
10
21.2
-15
-31.2667
469.0001
225
20
44.6
-5
-7.86667
39.33335
25
30
61.8
9.33333
46.66665
25
40
78
15
25.53333
383
225
50
105.2
25
52.73333
1318.333
625
Average
(X)= 25
Y=
3468
1750
52.46667
Weighted
Xi
Yi
Si
Si?
1/Si?
Wi
WiXi
WiYi
WIXIY
WiXi?
i
4
0.7071
0.5
1.9999
2.2397
8.9591
10
21.2
0.8366
0.7
1.4285
1.5998
15.998
33.916
339.16
159.98
20
44.6
0.8944
0.8
1.2500
1.3998
27.997
62.434
1248.6
559.94
30
61.8
1.6431
2.7000
0.3703
0.4147
12.443
25.633
768.99
373.29
40
78
2.2360
5
0.2
0.2239
8.9591
17.470
698.81
358.36
50
105.2
3.0331
9.2
0.1086
0.1217
6.0863
12.805
640.28
304.31
SUMS=
5.3576
6.0000
71.484
161.21
3695.9
1755.9
EWi/n=0.892939
Xw =11.91414
Yw = 26.86996
Slope (m) = 1.963153
Intercept (b) = 3.483
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