please answer the following questions :

1. find the MAD for each pair of values

2. use results to determine the values for a and b that minimize MAD for this data set

The total number of thousands of tons of coal produced per year over a 10-year period for a certain region is provided in the accompanying dataset. Use double exponential smoothing to determine which pairs of values for a and minimize MAD for this dataset. x = 0.1, p=0.8; x = 0.4, B=0.2; a=0.9, B=0.7 Click the icon to view the coal production data. First find the MAD for each pair of values, & and B. (Type integers or decimals rounded to two decimal places as needed.) (X B MAD 0.1 0.8 0.4 0.2 0.9 0.7