Monthly usage data for pallets used in a distribution center are as follows: Click here for the Excel Data File a. Calculate the monthly usage index for each month. b. Use simple linear regression to forecast total usage of pallets for year 5 . c. Forecast the seasonally adjusted usage for pallets for each month in year 5 . Use simple linear regression to forecast total usage of pallets for year 5 . Note: Do not round intermediate calculations. Round your answer to 3 decimal places. Forecast the seasonally adjusted usage for pallets for each month in year 5 . Note: Do not round intermediate calculations. Round your answers to 3 decimal places