Project Week 7
For these project assignments throughout the course you will need to reference the data in the ROI Excel spreadheet. Download it here.
Using the ROI data set:
For each of the two majors:
Draw the scatter diagram of Y = â€˜Annual % ROIâ€ against X = â€˜Costâ€.
Obtain b0 and b1 of the regression equation defined as y Ì‚ = b0 + b1X and the coefficient of determination (r2) from the Excel regression output.
Draw the fitted regression line on the scatter diagram.
Calculate the estimated â€˜Annual % ROIâ€ when the â€˜Costâ€ (X) is $160,000.
Test the hypothesis:
H0: Î²1 = 0
Ha: Î²1 â‰ 0
Write a paragraph or more on any observations you make about the regression estimates, coefficient of determination, the plots, and the results of your hypothesis tests.
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