Simple Linear Regression and Correlation: a.) Results of a study on the occurrence of sodium and chloride in surface streams in a coastal area. The following data are chloride concentration (y) in mg/liter and road-way area in the watershed (x) in %.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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I. Show complete solutions.
Simple Linear Regression and CoIrelation:
a.) Results of a study on the occurence of sodiun and chloride in surface streams in a
coastal area. The following data are chloride concentration (y) in mg/liter and road-way
area in the watershed (x) in %.
Y
0.24
1. What is the value of slope?
2. What is the value of the y-intercept?
4.6
0.3
6.4
3. What is the value of the coefficient of determination?
0.45
9.8
4. What is the value of the correlation coefficient?
0.75
10.7
5. What is the interpretation for this case?
6. What is the estimated chloride concentration if road way
area in the watershed is 1.30%
0.57
10.6
0.75
10.9
0.4
11.7
7. What is the equation of the prediction line?
0.8
12.5
0.6
14
0.78
14.7
0.85
15.1
0.68
18.3
0.69
19.2
1.4
23.1
1.15
27.3
1.05
27.7
1.69
32
1.62
38.4
Transcribed Image Text:I. Show complete solutions. Simple Linear Regression and CoIrelation: a.) Results of a study on the occurence of sodiun and chloride in surface streams in a coastal area. The following data are chloride concentration (y) in mg/liter and road-way area in the watershed (x) in %. Y 0.24 1. What is the value of slope? 2. What is the value of the y-intercept? 4.6 0.3 6.4 3. What is the value of the coefficient of determination? 0.45 9.8 4. What is the value of the correlation coefficient? 0.75 10.7 5. What is the interpretation for this case? 6. What is the estimated chloride concentration if road way area in the watershed is 1.30% 0.57 10.6 0.75 10.9 0.4 11.7 7. What is the equation of the prediction line? 0.8 12.5 0.6 14 0.78 14.7 0.85 15.1 0.68 18.3 0.69 19.2 1.4 23.1 1.15 27.3 1.05 27.7 1.69 32 1.62 38.4
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