Consider the previous exercise, which summarized data collected from drivers about their seat belt usage.

(a) Do you think there is a reason not to believe these data?

Explain your answer.

(b) Is it reasonable to use the hypothesis testing results from the previous problem to draw an inference about the difference in proportion of seat belt usage

(i) of the spouses of these drivers of domestic and foreign cars? Explain your answer.

(ii) of the children of these drivers of domestic and foreign cars? Explain your answer.

(iii) of all drivers of domestic and foreign cars? Explain your answer.

(iv) of all drivers of domestic and foreign trucks? Explain your answer.