I. GRAPH 15 12 0 Show y SSR 0 2 4 6 8 10 12 14...

 

 

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I. GRAPH 15 12 0 Show y SSR 0 2 4 6 8 10 12 14 16 x Proposed Regression Line Show residuals y-9 SSR= SST Components SETTINGS 3.95 Choose a Datanet (2 to 2000 Intercept Slope CALCULATIONS Sample Se Sum of Squares Total Sum of Squared Residuals 45 0.1 0.0 Minimize the Sum of Squared Residuals Interact with the above tool as instructed, and observe what happens to answer the following questions 29 Select data set 45 and then click anywhere else to plot the data. Click the Show Residuals button above the graph. 55.32 a. Instruct the interactive tool to plot the line y=-2.0--01x What is the Sum of Squared Residuals? (Provide two decimal places.) b. To adjust this line to better fit the data, which direction should the intercept change? O decrease increase c. Adjust the intercept by 0.2 in the direction that will improve the line. What is the new Sum of Squared Residuals? (Provide two decimal places) c. Adjust the intercept by 0.2 in the direction that will improve the line. What is the new Sum of Squared Residuals? (Provide two decimal places.) SSR= d. Holding the slope constant, continue to adjust the intercept to achieve the lowest possible SSR. Describe the best line that has an slope of -0.1. (Provide "Y-Intercept" to one decimal place and "SSR" to two decimal places.) Y-Intercept SSR= 0.0 0.00 I. GRAPH 15 12 0 Show y SSR 0 2 4 6 8 10 12 14 16 x Proposed Regression Line Show residuals y-9 SSR= SST Components SETTINGS 3.95 Choose a Datanet (2 to 2000 Intercept Slope CALCULATIONS Sample Se Sum of Squares Total Sum of Squared Residuals 45 0.1 0.0 Minimize the Sum of Squared Residuals Interact with the above tool as instructed, and observe what happens to answer the following questions 29 Select data set 45 and then click anywhere else to plot the data. Click the Show Residuals button above the graph. 55.32 a. Instruct the interactive tool to plot the line y=-2.0--01x What is the Sum of Squared Residuals? (Provide two decimal places.) b. To adjust this line to better fit the data, which direction should the intercept change? O decrease increase c. Adjust the intercept by 0.2 in the direction that will improve the line. What is the new Sum of Squared Residuals? (Provide two decimal places) c. Adjust the intercept by 0.2 in the direction that will improve the line. What is the new Sum of Squared Residuals? (Provide two decimal places.) SSR= d. Holding the slope constant, continue to adjust the intercept to achieve the lowest possible SSR. Describe the best line that has an slope of -0.1. (Provide "Y-Intercept" to one decimal place and "SSR" to two decimal places.) Y-Intercept SSR= 0.0 0.00

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