Lesson 8 course project
Lesson 8
Course Project – Phase 3
This week you will begin working on Phase 3 of your course project. Using the same data set and variables for your selected topic that you used for phases 1 and 2, Complete the following information to your analysis. Submit this work in a new submission (do not include Phase 1 and 2 in your submission this week)
A. Discuss the process for hypothesis testing.
- State and explain the steps of hypothesis testing.
- When performing a hypothesis test, which method do you prefer; P-Value method or Critical Value (classical) method? Why?
B. Perform the hypothesis test.
If you selected Option 1 (Salaries):
Claim: The average salary for all jobs in Georgia is less than $65,000. Test the claim using α = 0.05 and assume your data is normally distributed and σ is unknown.
If you selected Option 2 (Patients at Grady hospital):
Claim: The average age of all patients admitted to the hospital with this particular infectious disease is less than 65 years of age. Test the claim using α = 0.05 and assume your data is normally distributed and σ is unknown.
Based on your selected topic, perform and document the following steps:
- Write the null and alternative hypothesis symbolically and identify which hypothesis is the claim.
- Is the test two-tailed, left-tailed, or right-tailed? Explain.
- Which test statistic will you use for your hypothesis test; z-test or t-test? Explain.
- What is the value of the test-statistic? Show your calculation
- What is the P-value? Explain how you determined it
- What is the critical value? Explain how you calculated it
- What is your decision? Reject the null or do not reject the null? Explain why you made your decision including the results for your p-value and the critical value.
- State the final conclusion in non-technical terms.
Please show your work for the calculation of the test-statistic and explain your process for finding the p-value and critical value. You may use the Equation Editor to format your calculation steps on the Word document or attach an Excel spreadsheet clearly showing each calculation for #B4 and #B5, but your answers still need to appear on the Word document. Also, be sure to number each response in your paper using the same numbers as above
Grading: 15 points for style & appearance. Part A is worth 15 points (A1: 10 points, A2: 5 points). Part B is worth 70 points (B1: 10 points, B2, B3: 5 points each, B4-B8: 10 points each)
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