Need Help in answering the Forecast Stock Exchnage, looking for the answers to the 11 dates below on the forecast stock exhange. Thank you

The accompanying dataset provides the closing prices for four stocks and the stock exchange over 12 days. Complete parts a through c. Click the icon to view the closing prices data. Closing Prices Complete the exponential smoothing forecast model for the stock exchange. (Type integers or decimals rounded to two decimal places as needed.) Date09/03/201009/07/201009/08/201009/09/201009/10/201009/13/201009/14/201009/15/201009/16/201009/17/201009/20/201009/21/2010ForecastStockExchange The accompanying dataset provides the closing prices for four stocks and the stock exchange over 12 days. Complete parts a through c. Click the icon to view the closing prices data. Closing Prices Complete the exponential smoothing forecast model for the stock exchange. (Type integers or decimals rounded to two decimal places as needed.) Date09/03/201009/07/201009/08/201009/09/201009/10/201009/13/201009/14/201009/15/201009/16/201009/17/201009/20/201009/21/2010ForecastStockExchange