Suppose there is a claim that a certain population has a mean, LL, that is less than 9. You want to test this claim. To do so, you collect a large random sample from the population and perform a hypothesis test at the 0.05 level of signicance. To start this test, you write the null hypothesis, H0, and the alternative hypothesis, H1, as follows. H0: u : 9 H1: u