Milk Sales Are a Major Concern at BK Grocery A) Using a 2-Week Moving Average, Find Forecasts for Weeks

Milk sales are a major concern at BK Grocery. The following gives the demand for the past eight weeks.
$$\begin{array} { | c | c | } \hline \text { Week } & \text { Demand } \\\hline 1 & 250 \\\hline 2 & 200 \\\hline 3 & 220 \\\hline 4 & 190 \\\hline 5 & 230 \\\hline 6 & 240 \\\hline 7 & 260 \\\hline 8 & 230 \\\hline\end{array}$$
A) Using a 2-week moving average, find forecasts for weeks 6 through 9.
B) Using a weighted moving average with weights of 0.4, 0.3, 0.2, and 0.1, find the forecast for weeks 6 through 9.
C) Using exponential smoothing with α = 0.4 and a Week 5 forecast of 210, find the forecast for Week 6.