the following is the required question

7. The prots data of ABC company for years 1 to 4 have been found as follows: 1 58 51 70 75 The centered moving-average value calculated from the sales data for years 1 to 3 have been found as follows: Analyst A uses multiplicative decomposition method. (a) What is the adjusted seasonal index of Quarter 4 for the prots data? Interpret the meaning of this adjusted seasonal index. (16 marks) (b) If the trend equation is Tz=5. 848+ 0. I 79f, what is the forecast value for Quarter 4 of year 5? (3 marks) Analyst B uses additive decomposition method. (0) What is the adjusted seasonal index of Quarter 4 for the sales data? Interpret the meaning of this adjusted seasonal index. (16 marks) ((1) If the trend equation is Tt=5.853+0.180t, what is the forecast value for Quarter 4 of year 5