p 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 formatAnswer: ____/ 6 points
- What is your level of significance (choose ? = .05 or ? = .01)?Answer: ____/ 4 points
Step 2: Select the appropriate test statistic
- What is the appropriate test statistic?Answer: ____/ 4 points
Step 3: Set up the decision rule
- Based on the level of significance you set in step 1, 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) box. 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 ?2value 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
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