Question

The number of weeks each of 10 patients took a bipolar medication and their Beck Depression Inventory-II (BDI-II) score at the end of the medication period is presented in the table below.

Patient Number	1	2	3	4	5	6	7	8	9	10
Weeks of Medication	24	28	36	32	40	8	4	12	16	56
BDI-II Score	39	31	18	21	18	43	41	39	33	15

Test the hypothesis that the weeks of medication and BDI-II scores are inversely related. Complete the table below.

X	Y	X2	Y2	XY
24	39
28	31
36	18
32	21
40	18
8	43
4	41
12	39
16	33
56	15
Σ =	Σ =	Σ =	Σ =	Σ =

What is the r_cv? Report to three decimal places.   

For the question above, type your results and interpretation in an APA formatted paragraph.

Answer 1

	X	Y	X2	Y2	XY
	24	39	576	1521	936
	28	31	784	961	868
	36	18	1296	324	648
	32	21	1024	441	672
	40	18	1600	324	720
	8	43	64	1849	344
	4	41	16	1681	164
	12	39	144	1521	468
	16	33	256	1089	528
	56	15	3136	225	840
Total	256	298	8896	9936	6188