b$.$ Use trend$-$adjusted smoothing with $=0\mathrm{.}3$ and $=0\mathrm{.}2$ to smooth the new account data in part a$.$ What is the forecast for period $16?$ Compute the initial trend estimate $(T_t)$ for Period $5$ as follows: $($Period $4$ data $-$ Period $1$ data$)/3.$ Then compute the initial trendadjusted forecast $(TA{F}_t)$ for Period $5$ as follows: Period $4$ data $+$ Initial trend estimate for Period $5.$ Then compute all remaining values $($including the $S_t$ value for Period $5)$ using the textbook formulas or Excel template. $($Round the "Trend" values to $3$ decimal places and other values to $2$ decimal places for intermediate calculations. Round your final answer to $2$ decimal places.$)$

Forecast for period $16$