ROI data set

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:

1. For each of the 2 majors test the hypothesis at the 5% significance level:
   • The mean ‘Cost’ for a college is $160,000. Be sure to interpret your results.
2. For Business versus Engineering majors conduct a two sample test of the hypothesis at the 10% significance level (assume the variances are not equal):
   • The average ’30-Year ROI’ for Business majors is less than for Engineering Majors. Be sure to interpret your results.

   For each of the two majors:

   1. Draw the scatter diagram of Y = ‘Annual % ROI’ against X = ‘Cost’.
   2. Obtain b0 and b1 of the regression equation defined as y ̂ = b0 + b1X and the coefficient of determination (r2) from the Excel regression output.
   3. Draw the fitted regression line on the scatter diagram.
   4. Calculate the estimated ‘Annual % ROI’ when the ‘Cost’ (X) is $160,000.
   5. Test the hypothesis:
      • H0: β1 = 0
      • Ha: β1 ≠ 0
   6. 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.

 

Do you need a similar assignment done for you from scratch? We have qualified writers to help you. We assure you an A+ quality paper that is free from plagiarism. Order now for an Amazing Discount!
Use Discount Code “Newclient” for a 15% Discount!

NB: We do not resell papers. Upon ordering, we do an original paper exclusively for you.

The post ROI data set appeared first on Assignment Writing Services.