An article in the Journal of Environmental Engineering 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). y 4.4 6.6| 9.7 | 10.6 | 10.8 10.9 11.8 12.1 14.3 14.7 15 17.3 19.2 23.1 27.4 x 0.19 0.15 0.57 0.7 0.67 0.63 0.47 0.7 0.6 0.78 0.81 0.78 0.69 1.3 1.05 a. Find the simple linear regression model. b. Find an estimate of the coefficient of determination. C. Test the significance of the correlation coefficient.
An article in the Journal of Environmental Engineering 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). y 4.4 6.6| 9.7 | 10.6 | 10.8 10.9 11.8 12.1 14.3 14.7 15 17.3 19.2 23.1 27.4 x 0.19 0.15 0.57 0.7 0.67 0.63 0.47 0.7 0.6 0.78 0.81 0.78 0.69 1.3 1.05 a. Find the simple linear regression model. b. Find an estimate of the coefficient of determination. C. Test the significance of the correlation coefficient.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Transcribed Image Text:An article in the Journal of Environmental Engineering 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).
y 4.4 6.6 9.7 10.6 10.8 10.9 11.8 12.1 14.3 14.7 15 17.3 19.2 23.1 27.4
x 0.19 0.15 0.57 0.7 0.67 0.63 0.47 0.7
0.6 0.78 0.81 0.78 0.69 1.3
1.05
a. Find the simple linear regression model.
b. Find an estimate of the coefficient of determination.
C. Test the significance of the correlation coefficient.
d. Find the mean chloride concentration for a watershed that has 1% roadway area. Construct a
confidence interval for the estimate
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