State the null hypothesis,H0, and the alternative hypothesis.Ha, in terms of the appropriate parameter (orp).

1. The mean number of cars a person owns in her lifetime is not more than ten.
2. About half of Americans prefer to live away from cities, given the choice.
3. Europeans have a mean paid vacation each year of six weeks.
4. The chance of developing breast cancer is under 11% for women.
5. Private universities' mean tuition cost is more than $20,000 per year.