Fit the model Y = β x + ?to the chloride concentration-roadway area data An article in the Journal...

Fit the model Y = βx + ?to the chloride concentration-roadway area data 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). Plot the fitted model on a scatter diagram of the data and comment on the appropriateness of the model.

y	4.4	6.6	9.7	10.6	10.8	10.9
x	0.19	0.15	0.57	0.70	0.67	0.63

 

y	11.8	12.1	14.3	14.7	15.0	17.3
x	0.47	0.70	0.60	0.78	0.81	0.78

 

y	19.2	23.1	27.4	27.7	31.8	39.5
x	0.69	1.30	1.05	1.06	1.74	1.62

24/9/2014