Will rate. Need help with a-c

Any help is appreciated

The manager of a trendy downtown caf in Columbus, Ohio, collects weekly data on the number of customers it serves. A portion of the data is shown in the accompanying table. a. Use the simple exponential smoothing technique with =0.2 to make a forecast for Week 53 . (Do not round intermediate calculations. Round final answer to 2 decimal places.) y^53= b. Use the simple exponential smoothing technique with =0.4 to make a forecast for Week 53 . (Do not round intermediate calculations. Round final answer to 2 decimal places.) y^53= c-1. Which is the preferred technique for making the forecast based on MSE, MAD, and MAPE? (Do not round intermediate calculations. Round final answers to 2 decimal places.)