Determine the magnitude of the seasonal ratio of the average quarter centered at that time period....

Determine the magnitude of the seasonal ratio of the average quarter centered at that time period.

Quarterly Sales ($1,000,000s) for Turner Industries
Quarter	Year 1	Year 2	Year 3	Average
1	108	116	123	115.67
2	125	134	142	133.67
3	150	159	168	159
4	141	152	165	152.67
Average	131	140.25	149.5	140.25

Expert Solution

				Centered
				Moving	Ratio to	Seasonal
t	Year	Quarter	Data	Average	CMA	Indexes
1	1	1	108			0.849
2	1	2	125			0.963
3	1	3	150	132.000	1.136	1.131
4	1	4	141	134.125	1.051	1.057
5	2	1	116	136.375	0.851	0.849
6	2	2	134	138.875	0.965	0.963
7	2	3	159	141.125	1.127	1.131
8	2	4	152	143.000	1.063	1.057
9	3	1	123	145.125	0.848	0.849
10	3	2	142	147.875	0.960	0.963
11	3	3	168			1.131
12	3	4	165			1.057


	Calculation of Seasonal Indexes
	1	2	3	4
1			1.136	1.051
2	0.851	0.965	1.127	1.063
3	0.848	0.960
mean:	0.849	0.963	1.132	1.057	4.000
adjusted:	0.849	0.963	1.131	1.057	4.000

The graph is:

orchestra answered 2 years ago

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