Continue using the same $12$ periods of data for Series Y given in problem $21.$ Now forecast the Y value for the next period, period X $=13,$ using Brown$$s Exponential Smoothing with smoothing factors of $0\mathrm{.}1$ and $0\mathrm{.}9.$ Enter your answer rounded to two decimal places. For example, if your answer is $12\mathrm{.}345$ then enter as $12\mathrm{.}35$ in the answer box.