1. The state of Florida now requires all high school students to pass a literacy test before they can receive a high school diploma. A student who fails the test can enroll in a refresher course and...

1. The state of Florida now requires all high school students to pass a literacy test before they can receive a high school diploma. A student who fails the test can enroll in a refresher course and retake the test at a later date. To evaluate the effectiveness of the refresher course, eight students’ test scores were compared, before and after, with the results shown in the table. Do the data provide sufficient evidence to conclude that the mean score after people take the course is greater than the mean score before the course? Use =.05.  (We will answer this question in steps, please complete all steps to answer the underlying question)   Student Before After 1 45 49 2 52 50 3 63 70 4 68 71 5 57 53 6 55 61 7 60 62 8 59 67
  a. Is this a test of dependent (paired) means or independent means?
b. What are the null, H0, and alternative, H1,  hypotheses?
H0:
H1:
c. How many degrees of freedom are there in this data set?
d. Assuming that the alternative hypothesis is that the mean score after people take the course is greater than the mean score before the course, is this a right-tail, left-tail or two-sided test?