Posted by Chris on Monday, October 14, 2013 at 3:42pm.
Smoking
habit Socioeconomic status
High Low
Smoking 15 40 55
Not smoking 25 10 35
Total 40 50 N=90
a. For these ordinal variables, which hypothesis testing is appropriate to test the relationship between SES and smoking habits variable?
b. Write the HO and H1
c. Perform the test. Is there a statistically significant relationship between SES and Smoking?

Statistics  PsyDAG, Friday, October 18, 2013 at 7:51pm
A. Chi square
B. Ho: Smoking is not related to SES.
H1: Smoking is related to SES.
C. Use the Chisquare (X^2) method.
X^2 = ∑ (OE)^2/E, where O = observed frequency and E = expected frequency.
∑ = sum of all the cells.
E = (column total * row total)/grand total
df = n  1, where n = number of cells
Look up value in X^2 table in the back of your textbook.
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