please help

Food trucks have become a common sight on American campuses. They serve scores of hungry students strolling through campus and looking for trendy food served fast. The accompanying data flle contains the number of students served on weekdays on a small campus in California. Clickhere for the Excel Data File a. Use the 3-period moving average to make a forecast for Weekday 41. Note: Do not round intermediate calculations. Round final answer to 2 decimal places. b, Use the 5-period moving average to make a forecast for Weekday 41 , Note: Do not round intermediate calculations. Round final answer to 2 decimal places. c1. Report the performance measures for the techniques in parts a and b : Note: Do not round intermediate calculations. Round final answers to 2 decimal places. c-2. Which is the preferred technique for making the forecast? \begin{tabular}{|r|r|r|} \hline 1 & Weekday & Students \\ \hline 2 & 1 & 92 \\ \hline 3 & 2 & 72 \\ \hline 4 & 3 & 118 \\ \hline 5 & 4 & 123 \\ \hline 6 & 5 & 81 \\ \hline 7 & 6 & 125 \\ \hline 8 & 7 & 120 \\ \hline 9 & 8 & 126 \\ \hline 10 & 9 & 140 \\ \hline 11 & 10 & 124 \\ \hline 12 & 11 & 106 \\ \hline 13 & 12 & 93 \\ \hline 14 & 13 & 130 \\ \hline 15 & 14 & 165 \\ \hline 16 & 15 & 204 \\ \hline 17 & 16 & 157 \\ \hline 18 & 17 & 152 \\ \hline 19 & 18 & 118 \\ \hline 20 & 19 & 77 \\ \hline 21 & 20 & 31 \\ \hline 22 & 21 & 24 \\ \hline 23 & 22 & 66 \\ \hline 24 & 23 & 71 \\ \hline 25 & 24 & 109 \\ \hline 26 & 25 & 58 \\ \hline 27 & 26 & 80 \\ \hline 28 & 27 & 57 \\ \hline 29 & 28 & 32 \\ \hline 30 & 29 & 71 \\ \hline 31 & 30 & 38 \\ \hline 32 & 31 & 52 \\ \hline 33 & 32 & 92 \\ \hline 34 & 33 & 113 \\ \hline 35 & 34 & 105 \\ \hline 36 & 35 & 132 \\ \hline 37 & 36 & 126 \\ \hline 38 & 37 & 106 \\ \hline 39 & 38 & 156 \\ \hline 40 & 39 & 168 \\ \hline 41 & 181 \\ \hline \end{tabular}