The Following Table Presents the Numbers of Customers Who -

Multiple Choice

The following table presents the numbers of customers who - after 2 weeks of use - were satisfied $\begin{array}{ccccc}\hline & \text { Brand A } & \text { Brand B } & \text { Brand C } & \text { Brand D } \\\hline \text { Satisfied } & 38 & 26 & 21 & 44 \\\text { Dissatisfied } & 3 & 9 & 13 & 9 \\\hline\end{array}$

Can you conclude that the the satisfaction rate is related to the brand of computer? Use th $\alpha = 0.05$ level of significance.

A) Reject $H _ { 0 }$ . It appears that the satisfaction rates differ among the computer brands.
B) Do not reject $H _ { 0 }$ . There is insufficient evidence to conclude that the satisfaction rate differs among the computer brands.