Some of the following statements refer to the null hypothesis, some to the alternate hypothesis. State the null hypothesis,H0, and the alternative hypothesis.Ha:

a.The mean number of years Americans work before retiring is 34.

b.At most 60% of Americans vote in presidential elections.

c.The mean starting salary for San Jose State University graduates is at least $100,000 per year.

d.Twenty-nine percent of high school seniors get drunk each month.

e.Fewer than 5% of adults ride the bus to work in Los Angeles.

f.The mean number of cars a person owns in her lifetime is not more than ten.

g.About half of Americans prefer to live away from cities, given the choice.

h.Europeans have a mean paid vacation each year of six weeks.

i.The chance of developing breast cancer is under 11% for women.

j.Private universities' mean tuition cost is more than $20,000 per year.