An article in the Journal of Environmental Engineering (1989, Vol. 115(3), reported the results of a study on the occurrence of sodium and chloride in surface streams in central Rhode Island. The following data are chloride concentration y (in milligrams per liter) and roadway area in the watershed x (in percentage). Find the fitted value corresponding to x = 0.47 and the associated residual. Test the hypothesis H0: β1 = 0 versus H1: β1 ≠ 0 using th
An article in the Journal of Environmental Engineering (1989, Vol. 115(3), reported the results of a study on the occurrence of sodium and chloride in surface streams in central Rhode Island. The following data are chloride concentration y (in milligrams per liter) and roadway area in the watershed x (in percentage). Find the fitted value corresponding to x = 0.47 and the associated residual. Test the hypothesis H0: β1 = 0 versus H1: β1 ≠ 0 using th
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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Solve the following problems completely.
An article in the Journal of Environmental Engineering (1989, Vol. 115(3), reported the results of a study on the occurrence of sodium and chloride in surface streams in central Rhode Island. The following data are chloride concentration y (in milligrams per liter) and roadway area in the watershed x (in percentage).
- Find the fitted value corresponding to x = 0.47 and the associated residual.
- Test the hypothesis H0: β1 = 0 versus H1: β1 ≠ 0 using the analysis of variance procedure with α = 0.01.
- Find a 99% confidence interval of Mean chloride concentration when roadway area x = 1.0%
Transcribed Image Text:Solve the following problems completely.
An article in the Journal of Environmental Engineering (1989, Vol. 115(3), reported the
results of a study on the occurrence of sodium and chloride in surface streams in central
Rhode Island. The following data are chloride concentration y (in milligrams per liter) and
roadway area in the watershed x (in percentage).
X
y
y
X
y
0.19
4.4
0.15
6.6
0.57
9.7
0.70
10.6
0.67
10.8
0.63
10.9
0.47
11.8
0.70
12.1
0.60
14.3
0.78
14.7
0.81
15.0
0.78
17.3
0.69
19.2
1.30
23.1
1.05
27.4
1.06
27.7
1.74
31.8
1.62
39.5
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