Draw a chart for each of the following.

a. You wish to show that both verbal and mathematics test scores for all students have not changed much over the years.

b. The exact opposite of part (a).

c. You want to claim that there are no differences between genders.

d. You want to “prove” that differences between genders exist.

Month	1	2	3	4	5	6	7	8	9	10	11	12
Rate	7.5	7.6	7.5	7.3	7.2	7.1	7.0	6.7	6.4	6.5	6.3	6.0