9.1 H0 or Ha? For parts a and

b, is the statement a null hypothesis, or an alternative hypothesis?

a. In Canada, the proportion of adults who favor legalized gambling equals 0.50.

b. The proportion of all Canadian college students who are regular smokers is less than 0.24, the value it was 10 years ago.

c. Introducing notation for a parameter, state the hypotheses in parts a and b in terms of the parameter values.