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ALL THE HOMEWORK DETAILS ARE IN THE FILE AS WELL AS THE LECTURES THAT WILL HELP YOU WITH THE ASSIGNMENT. PLEASE READ CAREFULLY AND GET IT DONE ON TIME. ONE FILE IS THE HOMEWORK WITH THE INSTRUCTIONS AND THE OTEHR FILE IS THE DATA. THANK YOU
Date Posted: 20/06/2022
Category: Math
Due Date: 25/06/2022
Willing to Pay: $60.00
Instruction
Part 1: Model Building a. Global F Test: run a test of the complete 2nd order model. Insert the STATISTIX Printout of the results of this test. (1 pt.) Fill in the following information for your test (5 pts./1 pt. each) Test: H0: Ha: Test Statistic: __________ P-value: ______________ Conclusion: b. Quadratics test: run a quadratics test. Insert the STATISTIX Printout of the results of this test . (1 pts.) Fill in the following information for your test (7pts./1 pt. each): Full Model: Reduced Model: Test: H0: Ha: Test Statistic: ________________ P-value: _________________ Conclusion: c. Interactions Test: run an interactions test. Insert the STATISTIX Printout of the results of this test (1 pts.). Fill in the following information for your test (7 pts./1 pt. each): Full Model: Reduced Model: Test: H0: Ha: Test Statistic: ________________ P-value: ______________ Conclusion: d. Would your model building be finished after the interaction test you just ran? Why or why not? (1 pt.) Part 2: Final Model Interpretations a. Identify the least squares prediction equation for your best model after all the testing was completed. Do not include the Printouts of any additional tests conducted, just the results of the best test. Use the values from the Printout and write the prediction equation below (use numbers, no betas). (1 pt.) ŷ = b. Interpret the R2 and the 2s associated with your best model. (2 pts.) c. Using your best model, create a confidence interval for observation #15. Insert the Printout. (1 pt.) Interpret this confidence interval. (1 pt.) d. Would you use your model in practice? Why or why not? Provide at least two items of information to support you view. (2 pts.)
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