Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2021 1.4 1.7 2.6 4.2 5 5.4 5.4 5.3 5.4 6.2 6.8 7 2022 7.5 7.9 8.5 8.3 8.6 9.1 a. Using 3 month moving average method, forecast the inflation rates for 2022 January to June. (Use 2021 inflation rate values). b. Assume that the inflation forecast for January 2021 was 1.4. Using Exponential smoothing method with a=0.3, forecast the inflation rates for 2022 January to June