Final answer:
The null hypothesis for examining the association between texting while driving and car fatalities is that there is no association between the two variables.
Step-by-step explanation:
The null hypothesis for examining the association between texting while driving and car fatalities is that there is no association between the two variables. In this case, the null hypothesis would state that texting while driving has no effect on car fatalities. The alternative hypothesis would state that there is an association between texting while driving and car fatalities.