In a forecast analysis the partition column has to he created randomly. That is, the stratied random method can be used to choose the training set and the validation set. {i} True {3 False Multiple Linear Regression in forecast analysis method cannot capture seasonality True O FalseIn order to consider dependence between observations one may use ARIMA but not multiple linear regression O True O FalseDownload the data set ToysRUsRevenues.jmp &. Graph the time series by using the Graph Builder (Cast the variable "Revenue (in Millon $)" to Y-axis and the variable "Quarter-Year" to X-Axis. The following statement is [ Select ] There is a seasonality pattern but not a trend in the revenue. Fit a regression model with a linear trend and quarter (you'll need to create a new column, "Row", consisting of row numbers). To create a validation column : use the first 14 quarters as the training set, and the last two quarters as the validation set (create a new "Validation" column to indicate the partition: You can select the first 14 rows and go to Rows in the ribbon and choose Row Selection>Name Selection in the Column. Selected rows will be named as training set and the others will be named as validation). ToysRUsRevenues File Edit Tables "Cow Klas DOE Analyze Graph Tools Add-Ins View Window Help ToysRUsRevenues (1) Revenue [in million Source QuarterYear Quarter 1 01-92 Q1 1026 02-92 Q2 1056 Q3-92 Q3 1182 04-92 04 2861 Q1-93 Q1 1172 Q2-93 1249 03-93 Q3 1346 Name Selection in Column.. X 04-93 3402 9 Q1-94 Q1 1286 Label the currently selected rows and save the value(label) in a 10 02-94 1317 column. 11 03-94 1449 Column Name Validation 04 -94 3893 Selected Training Q1-95 1462 Unselected Validation 14 02-95 1452 15 03-95 1631 OK Cancel 16 04-95 4200 To create a column "Row" with the row numbers, go to "Cols>New Column" in the ribbon, name the column as "Row", choose "Formula" in Column Properties and use the formula "Row()". You should close the dialog window by clicking Apply and OK Amilyar Graph Boots Add-his Whew Window HelpFile Ide Tables Hows Can Doll Amalyes Graph hols Add-is View Window Help Revenue In million Source Quater Yew Quater 1 01-84 10hi Treeing 102-42 105 Training 17142 Training New Column - IMP Pan 201 Traning 117 Treking Column Nana Cancel Lack Apply Dais Type Modding Trips 12 04-M4 Band width 12 13 01-49 14 02-15 mission Data Maning/Empty Hugemini Row ( Compain Protonday Dais Um Bow Male Preview or Cancel Apply Help In Fit Model Platform, cast the variable "Revenue (in Millions $)" to Y Column, and the variables "Quarter" and "Row" to Model Effects. Cast the validation column to the validation field The RSquare value [ Select ] on the training set indicates the portion of the overall variation that is explained by the regression. The Root Mean Square Error value [ Select ] gives an idea of the magnitude of the typical error (regardless of direction). The coefficient for trend is [ Select ] This means that after adjusting for seasonality the average sales increase by [ Select ] million/quarter. After adjusting for trend, which quarter (Q1, Q2, Q3, or Q4) has the highest average sales? The quarter [ Select ] has the highest average sales