please answer all parts

The mansger of a trendy downtown cafe in Columbus, Ohio, collects wookly data on the number of customers it serves. A portion of the data is shown in the accompanying tabie. Daictureclick here for the fxcel Dota fle a. Use the simple exponential smoothing technique with a=0.2 to make a forecast for Week 53 , (Do not round intermedlate calculations. Round final answer to 2 decimal places.) b. Use the simple exponential smocthing technique with a=0.4 to make a focecast for Week 53 . (Do not round intermediate calculations. Round final answer to 2 decimal places.) C1. Which is the preferred technique for making the forecost based on MSE, MAD, and MAPE? (Do not round intermediate calculations. Round final answers to 2 decimal places.)