The fourth quarter sale is 36 units.
The first quarter sale is 36+12 = 48 units
The second quarter sale is 36+30 = 66units
The third quarter sale is 36+45 = 81 units.
Therefore the first option is correct.
Q3>Q2>Q1>Q4
A forecaster used the regression equation Qt = a + bt + C1 Da + c2D2 + c3D3 and quarterly sales data for 19981-2016/V (...
A forecaster used the regression equation Qt = a + bt + C1D1 + c2D2 + c3D3 and quarterly sales data for 19981-20161V (t = 1, ...,72) for an appliance manufacturer to obtain the results shown below. Q is quarterly sales, and D1, D2, and D3 are dummy variables for quarters I, II, and III. DEPENDENT VARIABLE: QT R-SQUARE P-VALUE ON F OBSERVATIONS: 72 0.8798 122.547 0.0001 PARAMETER STANDARD VARIABLE ESTIMATE ERROR T-RATIO P-VALUE INTERCEPT 36 12.54 2.87 0.0055 2.5...
A forecaster used the regression equation Qt = a + bt + c1D1 + c2D2 + c3D3 and quarterly sales data for 1998I-2016IV (t = 1, ...,72) for an appliance manufacturer to obtain the results shown below. Q is quarterly sales, and D1, D2, and D3 are dummy variables for quarters I, II, and III. Using the estimation results given above, the predicted level of sales in 2019III is _______ units. 201 288.5 252.5 231.5 A forecaster used the regression equation...