A company named Bubba's Web hosting provides two tiers of web hosting service accounts (an upper tier and a lower tier). The file named WebHostingSales.xlsx contains the data for the number of upper tier hosting accounts, the number of lower tier hosting accounts and total monthly sales dollars for 48 consecutive months. Use linear regression to determine the monthly rate (in dollars) for the upper tier and the monthly rate (in dollars) for the lower tier. Upper tier rate ($/month): ________________________ Lower tier rate ($/month): ________________________ Attach a scanned copy of the regression analysis output from the spreadsheet.

Month	LowerTier	UpperTier	SalesDollars
1	70	147	$1,421.00
2	160	82	$1,216.00
3	0	109	$872.00
4	400	100	$2,200.00
5	38	88	$837.00
6	43	98	$934.50
7	400	26	$1,608.00
8	0	169	$1,352.00
9	150	83	$1,189.00
10	344	131	$2,252.00
11	226	120	$1,751.00
12	508	129	$2,810.00
13	75	132	$1,318.50
14	28	0	$98.00
15	8	101	$836.00
16	126	166	$1,769.00
17	157	39	$861.50
18	382	209	$3,009.00
19	123	108	$1,294.50
20	632	98	$2,996.00
21	131	64	$970.50
22	543	97	$2,676.50
23	468	81	$2,286.00
24	145	6	$555.50
25	361	207	$2,919.50
26	84	159	$1,566.00
27	278	61	$1,461.00
28	397	87	$2,085.50
29	233	77	$1,431.50
30	210	120	$1,695.00
31	402	32	$1,663.00
32	152	203	$2,156.00
33	105	69	$919.50
34	285	42	$1,333.50
35	276	0	$966.00
36	115	177	$1,818.50
37	279	97	$1,752.50
38	311	59	$1,560.50
39	337	7	$1,235.50
40	156	66	$1,074.00
41	405	81	$2,065.50
42	0	50	$400.00
43	313	75	$1,695.50
44	528	0	$1,848.00
45	222	52	$1,193.00
46	233	0	$815.50
47	374	240	$3,229.00
48	84	159	$1,566.00