supplies that go with the cleaners. Data for the last 10 weeks are shown here. \begin{tabular}{c|cccccccccc} \hline Week & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \\ \hline Rentals & 19 & 22 & 34 & 20 & 16 & 24 & 25 & 28 & 21 & 14 \\ \hline \end{tabular} a. Prepare a forecast for weeks 6 through 10 by using a 4-week moving average. (Enter your responses rounded to two decimal places.) \begin{tabular}{cc} \hline Week & Forecast \\ \hline 6 & \end{tabular}