Using the data below, test whether education and smoking status are independent. Run the test at a 5% level of significance. 1) Write out the appropriate null hypothesis and the alternative hypothesis; 2) Calculate the test statistic; 3) Give your conclusion including a comparison to alpha or the critical value.
|
Smoker
|
Non-Smoker
|
|
High School Graduate
|
12
|
38
|
|
< 4 years of college
|
45
|
152
|
|
Bachelor's Degree
|
32
|
239
|
|
Graduate Degree
|
5
|
52
|