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The bookings taken by an airline on the first eight days after a well-publicized aviation accident were:
(a) Produce predictions up to and including day 9 using the exponential smoothing model with a smoothing constant of 0.3 and calculate the mean squared deviation (MSD) of the errors.
(b) Construct predictions to day 9 using a smoothing constant of 0.6 and compute the MSD of the errors. Is this a better model?
She wishes to calculate a project's PW with estimated costs of $35,000 now and $7000 per year for 5 years beginning 1 year from now with increases of 10 % per year thereafter for the next 8 years. Use a real interest rate of 12% per year to make t..
Write the balanced formula, complete ionic, and net ionic equations for the reactions that occur when the following are mixed. a. potassium hydroxide (aqueous) and nitric acid
Consider the accompanying diagram. Ball A is allowed to fall and strike ball B. Assume that all of ball A's energy is transferred to ball B, at point I, and that there is no loss of energy to other sources.
The most unsuitable reactor for carrying out reactions in which high reactant concentration favours high yields is 1. plug flow reactor 2. PFR in series
Develop a series of design graphs that can be used to demonstrate acceptable combinations of tubes dimensions
A 25.00-mL sample of hydrochloric acid solution requires 24.16 mL of 0.106 M sodium hydroxide for complete neutralization. What is the concentration of the original hydrochloric acid solution?
The impedance of the primary and secondary coils. What is the ratio between the impedance in the primary and secondary?
If the generated emfs are 200 and 210 V, respectively, determine the load voltage and the armature current of each machine.
For connection purposes, the sphere is trimmed and connections made to the flat surfaces created by the cuts. The resistance R and source voltage V are known.
estimate the yearly cost of running the refrigerator. Assume a coefficient of performance equal to 60% of the Carnot value.
If the bore of the machine is 42 cm in diameter, its axial length is 28 cm, and each pole subtends an angle of 60°, determine the air-gap flux density. (Note that the number of parallel paths is equal to the number of poles for lap windings.)
On the basis of the general solubility rules given in Table 4.1, predict which of the following substances are likely to be soluble in water.
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