A decadeold study found that the proportion of high school seniors who felt that "getting rich" was an important personal goal was 1"2'3'21. Suppose that we have reason to believe that this proportion has changed, and we wish to carry out a hypothesis test to see if our belie]c can be supported. State the null hypothesis HE and the alternative hypothesis HI that we would use for this test. Hun D L1 s in H1: [I S G s :l \"Id: 1st 15E 12E X 53