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5.34 Cooling method for gas turbines. Refer to the Journal of Engineering for Gas Turbines and Power (January 2005) study of a high-pressure inlet fogging method for a gas turbine engine, Exercise5.19 (p. 281). Recall that you analyzed a model for heat rate (kilojoules per kilowatt per hour) of a gas turbine as a function of cycle speed (revolutions per minute) and cycle pressure ratio. Now consider a qualitative predictor, engine type, at three levels (traditional, advanced, and aeroderivative).
(a) Write a complete second-order model for heat rate (y) as a function of cycle speed, cycle pressure ratio, and engine type.
(b) Demonstrate that the model graphs out as three second-order response surfaces, one for each level of engine type.
(c) Fit the model to the data in the GASTUR- BINE ?le and give the least squares prediction equation.
(d) Conduct a global F -test for overall model adequacy.
(e) Conduct a test to determine whether the second-order response surface is identical for each level of engine type
Fred is a salesman who can sell enough to generate $200,000/year worth of profit for his company. He earns only $110,000 in compensation. What is the value of his outside or next best alternative?
The following table contains data for a hypothetical open economy. The amount of investment spending is unknown. According to the savings-investment spending identity for an open economy, what is the amount of investment spending in this economy.
Suppose that your rich uncle has $1,000,000 that he wishes to distribute to his heirs at the rate of $100,000 per year. If the $1,000,000 is deposited in a bank account that earns 6% interest per year, how many years will it take to completely dep..
Find the Pareto optimal amount of fireworks for Galway
Do you use illustrations to teach others? How have you used examples to win an argument, teach your child a difficult lesson, or to explain a problem? In what ways are illustrations a part of your daily interactions with others?
The Federal Reserve has just purchased $100 million in Treasury bills from commercial banks. b. If the public holds a fixed amount of currency (so that all loans create an equal amount of deposits in the banking system), the minimum reserve ratio ..
Two Firms, CS Corp. and JL & Associates make identical goods and sell them in the same market. Market demand is given by Q = 1200 -P . Once a Firm has built capacity, it can produce up to its capacity each period with a marginal cost of MC
Suppose the initial equilibrium price of haircuts is $12. Draw demand and supply graphs to show the short-run and long-run effects
For what levels of output does your firm have economies of scale? Is this a case for natural monopoly Why (b) Now assume you are a monopolist, and the demand for your product is P=2000-5Q. What price will you charge How much deadweight loss will ..
Demonstrate that the maximum likelihood estimator of p is m/n.
(a) Find the marginal probability density function of Y (b) Find the conditional probability density function of Y given that X=2 (c) Find the covariance of X and Y (d) Are X and Y independent 1 3 9 2 1/8 1/24 1/12 X 4 1/4 1/4 0 6 1/8 1/24 1/12
A study of costs of electricity generation for a sample of 56 British firms in the 1946-1947 yielded the following long-run cost function: AVC = 1.24 +.0033Q + .0000029Q2 - .000046QZ - .026Z + .00018Z2 Where AVC = average variable cost (i.e., work..
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