Moving averages are often used to reflect changes in share prices. Daily closing prices in dollars per share for SanDisk for Aug 16, 2002 to September 3, 2002 are given below Date $ Price Date $ Price Date $ Price 8/16 14.45 8/22 17.32 8/28 15.09 8/19 15.75 8/23 15.96 8/29 16.42 8/20 16.45 8/26 16.45 8/30 16.21 8/21 17.4 8/27 15.6 9/3 15.22

1)Use exponential smoothing with alpha = 0.7 to forecast the price on Sept 4th 2002.

2)The MSE (mean squared error) for the 5 point moving average is

3)The mean squared error for exponential smoothing is

4)The Mean squared error (MSE) for the 4 pt moving average is