The mean squared error (MSE) for the forecast developed using trend-adjusted exponential smoothing is __ (thousand dollars)2 (round your response to two decimal places).

Part one has been answered, please only complete part 2 regarding the mean squared error. Thank you so much!

Income at the architectural firm Spraggins and Yunes for the period February to July was as follows: Month Income ($000's) February 75.0 March 71.5 April 66.4 May 72.3 June 73.5 July 74.0 Assume that the initial forecast for February is 70.0 (in $ thousands) and the initial trend adjustment is 0. The smoothing constants selected are a = 0.1 and p = 0.8. Using trend-adjusted exponential smoothing, the forecast for the law firm's August income is 72.54 thousand dollars (round your response to two decimal places). (thousand dollars)? (round your response to two decimal The mean squared error (MSE) for the forecast developed using trend-adjusted exponential smoothing is places)