PUBH 6033—Week 10 Assignment 1
Identifying Risks and Hazards—Part 1
(Rubric included)
Instructions
For this Assignment, review this week’s Learning Resources. Open SPSS and then use the file/open/data command to open the dataset asbestos.sav. This is data collected on the incidence of lung cancer for those exposed to asbestos and those not exposed.
Run a chi-square for independence and odds ratio analysis as per this Week’s demonstration video. Then, provide your response to all items in this worksheet.
Note: You will use the SPSS Output generated in this Assignment 1 to complete Assignment 2 as well.
Submit this Application Assignment by Day 7.
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Note: Scores are to be entered by instructor
Step 1: Set up your hypothesis and determine the level of significance
- State the alternative/research hypothesis in written format.
Answer: ____ / 6 points
- State the null hypothesis in written format
Answer: ____ / 6 points
- What is your level of significance (choose α = .05 or α = .01)?
Answer: ____ / 4 points
Step 2: Select the appropriate test statistic
- What is the appropriate test statistic?
Answer: ____ / 4 points
-Continued below-
Step 3: Set up the decision rule
- Based on the level of significance you set in step 1 and test statistic in step 4, what is your decision rule?
Note: Because there are 2 rows and 2 columns, the total degrees of freedom is 1.
Answer: ____ / 6 points
Step 4: Compute the test statistic
- Open SPSS and then use the file/open/data command to open the dataset asbestos.sav.
- Select: Analyze > Descriptive Statistics > Crosstabs
- Move asbestos to the Row(s) box, and lungca to the Column(s) Click on Statistics and make sure Chi-Square and RISK are checked. Click on Cells, and check Observed and Expected (frequencies). Click Continue; click OK.
- What is the χ2 value computed by your SPSS analysis?
Answer: ____ / 4 points
- Paste your SPSS output here:
Answer: ____ / 20 points
Step 5: Conclusion
8. Do you reject or fail to reject the null hypothesis?
Answer: ____ / 6 points
- Is there an association between asbestos exposure and lung cancer?
Answer: ____ / 4 points
Section below (scoring) is to be completed by Instructor
Scoring Rubric for Week 10 Assignment1
Identifying Risks and Hazards—part 1 (60 points)
Initial Score (60 possible points):
Timeliness Factor (late points deducted):
Total Score (60 possible points):
Instructor comments:
