Answer
$X_0^2=7.803$ with a P-value $\gtα$. Do not reject the null hypothesis.
There is not enough evidence to conclude that smoking status and level of education are dependent.
Work Step by Step
$H_0:$ smoking status and level of education are independent.
versus
$H_1:$ smoking status and level of education are dependent.
In MINITAB, enter the given values:
1-C1 = 178, 1-C2 = 88, 1-C3 = 208
2-C1 = 137, 2-C2 = 69, 2-C3 = 143
3-C1 = 44, 3-C2 = 25, 3-C3 = 44
4-C1 = 34, 4-C2 = 33, 4-C3 = 51
Select Stat -> Tables -> Chi-Square Test for Association
Select "Summarized data in a two-way table"
In columns containing the table enter: C1 C2 C3
Click OK.
$X_0^2=7.803$ with a P-value $=0.253\gtα=0.05$
