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Business statistics week 7

Date Posted: 02/12/2018
Category: Business
Due Date: 03/12/2018
Instruction
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 = ‘Annual % ROI’ against X = ‘Cost’. Obtain b0 and b1 of the regression equation defined as y ̂ = 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 ‘Annual % ROI’ when the ‘Cost’ (X) is $160,000. Test the hypothesis: H0: β1 = 0 Ha: β1 ≠ 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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