1. Results of a study on the occurrence of chloride in surface streams are shown below. The following data are chloride

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1 Results Of A Study On The Occurrence Of Chloride In Surface Streams Are Shown Below The Following Data Are Chloride 1 (63.26 KiB) Viewed 71 times

1. Results of a study on the occurrence of chloride in surface streams are shown below. The following data are chloride concentration y (in mg/L) and roadway area in the watershed x. у 4.4 0.19 6.6 0.15 9.7 0.57 10.6 0.70 10.8 0.67 10.9 0.63 11.8 0.47 12.1 0.70 14.3 0.60 14.7 0.78 15.0 0.81 17.3 0.78 х i. Draw a scatter diagram of the data. Does a simple linear regression model seem appropriate? ii. Fit the simple linear regression model using the method of least squares. Add this to the scatterplot. iii. Estimate the chloride concentration if the roadway area in the watershed is 0.25. iv. Calculate the coefficient of determination and comment on this value.