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Joe Kool has decided to use 3-month weighted moving average method for one of his company's products. Last year's monthly sales data are given in Table 2.19. Joe is trying to decide the appropriate weights to select for his forecasting method that will minimize the sum of the absolute errors between the forecasts and the actual values. Show that the determination of the optimal weights can be formulated as an LP problem. Solve the linear program using any optimization software and determine the forecast for month 13.
Determine the greatest load P the beam will support without causing the A992 steel member BC to buckle. Due to the forked ends on the member, consider the supports at B and C to act as pins for x-x axis buckling and as fixed supports for y-y axis ..
FeCl3 is added to remove excess phosphate. The following reactions occur (the charges are in parentheses): FeCl3 -> Fe(3+) + 3Cl(-) Fe(3+) + PO4(3-) -> FePO4
problem analyze the stability of the dam shown in the figure if the friction coefficient between concrete and
The discharge from a sugar beet plant causes the DO at the critical point to fall to 4.0 mg/L. The stream has a negligible BOD and the initial deficit after the river and wastewater have mixed is zero.
When measuring a distance AB, the first taping pin was placed 1.5ft to the right of line AB and the second pin was set 1.5 ft left of line AB. The recorded distance was 236.89 ft. ( Assume 3 taped segments, the first two 100 ft each.)
At a specified point on a highway, vehicles are known to arrive according to a Poisson process. Vehicles are counted in 20-second intervals, and vehicle counts are taken in 120 of these time intervals.
Determine the critical temperature, pressure, and density for stagnation temperature and pressure of 800 K and 500 kPa
Make measured drawings of millwork details in an older building that you admire. Analyze each detail to discover its logic. What woods were used and how were they sawn? How were they finished?
Determine the deflection at C using the strain energy method - derive an expression for the deflection equation along the span AB. Determine the deflection at C.
It is desired to compare the results of property predictions for water near or in the saturation region using (a) the ideal gas equation, (b) the compressibility chart and (c) the steam tables.
three bars each made of different materials are connected together and placed between two walls when temperature is t1
Determine the values of S and Z and the shape factor about the horizontal x axes. Use the web and flange dimensions given in the AISC Manual for making these calculations.
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