For students who first enrolled in two-year public institutions in a recent semester, the proportion who earned a bachelor's degree within six years was 0.397. The president of a certain junior college believes that the proportion of students who enroll in her institution have a higher completion rate (a) State the null and alternative hypotheses in words. (b) State the null and alternative hypotheses symbolically, (c) Explain what it would mean to make a Type | error. (d) Explain what it would mean to make a Type II error (a) State the null hypothesis in words. Choose the correct answer below. O A. Among students who enroll at the certain junior college, the completion rate Is greater than 0.397. O B. Among students who enroll at the certain junior college, the completion rate is less than 0.397. O C. Among students who first enroll in two-year public institutions, the completion rate is 0.397. O D. Among students who enroll at the certain junior college, the completion rate is 0.397