Given the following data and seasonal index: Month Sales   Year 1 Year 2 Jan 8

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Given the following data and seasonal index:

Month

Sales

 

Year 1

Year 2

Jan

8

8

Feb

7

9

Mar

5

6

Apr

10

11

May

9

12

June

12

16

July

15

20

Aug

20

25

Sept

4

4

Oct

3

2

Nov

8

7

Dec

9

9

(a) Compute the seasonal index using only year 1 data. 
(b) Determine the deseasonalized demand values using year 2 data and year 1's seasonal indices.

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