What is the mse using this technique what is the forecasted

Question

The second question to the previous question posted is: Apply Holt's method to this data set and use solver to find the values of alpha and beta that minimize the MSE between the actual and predicted CPI values. What is the MSE using this technique? What is the forecasted CPI Value for November 205 and November 2006 using this technique? Please show how the formula is calculated.

Year	Month	Time period	CPI
1991	1	1	134.6
	2	2	134.8
	3	3	135.0
	4	4	135.2
	5	5	135.6
	6	6	136.0
	7	7	136.2
	8	8	136.6
	9	9	137.2
	10	10	137.4
	11	11	137.8
	12	12	137.9
1992	1	13	138.1
	2	14	138.6
	3	15	139.3
	4	16	139.5
	5	17	139.7
	6	18	140.2
	7	19	140.5
	8	20	140.9
	9	21	141.3
	10	22	141.8
	11	23	142.0
	12	24	141.9
1993	1	25	142.6
	2	26	143.1
	3	27	143.6
	4	28	144.0
	5	29	144.2
	6	30	144.4
	7	31	144.4
	8	32	144.8
	9	33	145.1
	10	34	145.7
	11	35	145.8
	12	36	145.8
1994	1	37	146.2
	2	38	146.7
	3	39	147.2
	4	40	147.4
	5	41	147.5
	6	42	148.0
	7	43	148.4
	8	44	149.0
	9	45	149.4
	10	46	149.5
	11	47	149.7
	12	48	149.7
1995	1	49	150.3
	2	50	150.9
	3	51	151.4
	4	52	151.9
	5	53	152.2
	6	54	152.5
	7	55	152.5
	8	56	152.9
	9	57	153.2
	10	58	153.7
	11	59	153.6
	12	60	153.5
1996	1	61	154.4
	2	62	154.9
	3	63	155.7
	4	64	156.3
	5	65	156.6
	6	66	156.7
	7	67	157.0
	8	68	157.3
	9	69	157.8
	10	70	158.3
	11	71	158.6
	12	72	158.6
1997	1	73	159.1
	2	74	159.6
	3	75	160.0
	4	76	160.2
	5	77	160.1
	6	78	160.3
	7	79	160.5
	8	80	160.8
	9	81	161.2
	10	82	161.6
	11	83	161.5
	12	84	161.3
1998	1	85	161.6
	2	86	161.9
	3	87	162.2
	4	88	162.5
	5	89	162.8
	6	90	163.0
	7	91	163.2
	8	92	163.4
	9	93	163.6
	10	94	164.0
	11	95	164.0
	12	96	163.9
1999	1	97	164.3
	2	98	164.5
	3	99	165.0
	4	100	166.2
	5	101	166.2
	6	102	166.2
	7	103	166.7
	8	104	167.1
	9	105	167.9
	10	106	168.2
	11	107	168.3
	12	108	168.3
2000	1	109	166.6
	2	110	168.8
	3	111	169.8
	4	112	171.2
	5	113	171.3
	6	114	171.5
	7	115	172.4
	8	116	172.8
	9	117	173.7
	10	118	174.0
	11	119	174.1
	12	120	174.0
2001	1	121	175.1
	2	122	175.8
	3	123	176.2
	4	124	176.9
	5	125	177.7
	6	126	178.0
	7	127	177.5
	8	128	177.5
	9	129	178.3
	10	130	177.7
	11	131	177.4
	12	132	176.7
2002	1	133	177.1
	2	134	177.8
	3	135	178.8
	4	136	179.8
	5	137	179.8
	6	138	179.9
	7	139	180.1
	8	140	180.7
	9	141	181.0
	10	142	181.3
	11	143	181.3
	12	144	180.9
2003	1	145	181.7
	2	146	183.1
	3	147	184.2
	4	148	183.8
	5	149	183.5
	6	150	183.7
	7	151	183.9
	8	152	184.6
	9	153	185.2
	10	154	185.0
	11	155	184.5
	12	156	184.3
2004	1	157	185.2
	2	158	186.2
	3	159	187.4
	4	160	188.0
	5	161	189.1
	6	162	189.7
	7	163	189.4
	8	164	189.5
	9	165	189.9
	10	166	190.9
	11	167	191.0
	12	168	190.3
2005	1	169	190.7
	2	170	191.8
	3	171	193.3
	4	172	194.6
	5	173	194.4
	6	174	194.5
	7	175	195.4
	8	176	196.4
	9	177	198.8
	10	178	193.2
	11	179
	12	180