StatCrunch Instructions: Test of Independence Using Technology
Next we will use StatCrunch to calculate the expected counts:
- Enter Yes and No in column var1.
- Enter the observed counts as they appear in the table above (not including the totals) into columns var2 and var3.
- Rename: var1 as "911", var2 as "No Risk" and var3 as "M to S Risk"
- Choose Stat -> Tables -> Contingency -> with summary
- Select the columns: "No Risk" and "M to S Risk"
- Select Row labels in: "911"
- Press Next
- Check "Expected Count" and "Chi-Square"