What is the mean error for the moving average forecast (N=3) for Product A?

What is the mean error for the moving average forecast (N=3) for Product B?

What is the mean squared error for the moving average forecast (N=3) for Product C?

What is the mean squared error for the moving average forecast (N=3) for Product D?

What is the mean squared error for the moving average forecast (N=3) for Product E?

+ Sheet1 Period Product A Product B Product C Product D Product E 1 96 107 164 168 217 2 98 94 156 200 190 2 3 103 98 161 194 184 4 97 100 155 177 196 104 95 152 5 6 96 155 106 102 172 195 193 185 208 196 7 103 153 8 103 104 150 191 199 9 103 95 151 182 219 10 103 90 158 181 204 11 99 159 161 215 182 12 103 154 189 107 103 90 104 13 100 159 171 212 14 105 155 174 196 15 96 103 154 163 181 16 97 103 162 195 200 17 103 92 158 190 178 18 100 94 164 210 213 209 208 19 102 108 158 198 20 100 104 154 166 21 97 100 162 187 191 22 99 94 159 166 216 23 95 93 152 186 199 24 99 106 163 167 188 25 102 102 150 172 183 26 105 102 153 182 219 27 100 94 154 176 217 28 96 93 153 169 205 29 101 93 152 166 219 30 98 97 150 187 202 31