Income at the architectural firm Spraggins and Yunes for the period February to July was as? follows:
Month February March April May June July
Income ($000's) 75.0 71.5 66.4 72.3 73.5 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 (α) ?= 0.2 and (β) ?=0.3.Using? trend-adjusted exponential? smoothing, the forecast for the architectural? firm's August income is ___ thousand dollars ?(round your response to two decimal? places).