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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
The presence of autocorrelation leads to all of the following undesirable consequences in the regression results except:
Find E(Z) (1 dp) 2. Assuming that X and Y are statistically independent find var(Z) (1 dp) 3. Assuming that cov(X,Y) = 2 find var(Z) (1dp)
If borrowing and lending is prohibited, so each student uses only his or her own saving to finance his or her own project, how much will each student have a year later when the projects pay their returns
Golden Star Winery produces midlevel wines consumed primarily in North America. Given below is the projected income statement for the company for 2011. Projected Income Statement (2011) Sales (100,000 cases at $7 per case) $700,000 Cost of goods s..
To receive discussion points, you must describe specific criteria that make the sources acceptable, the citation correct, or the paraphrase well written. Be wary of discussing the topic rather than offering substantive criticism.
Suppose demand for HP printers is estimated to be Q = 1000 - 5p + 10pX - 2pZ + 0.1Y. If p = 80, pX = 50, pZ = 150, and Y = 20,000; answer the following: a) What is the price elasticity of demand for HP printers
Suppose economists observe that an increase in government spending of $10 billion raises the total demand for goods and services by $30 billion. If these economists ignore the possibility of crowding out, hat would they estimate the marginal prope..
In a Solow Growth model with technological change, if population grows at a 2 percent rate and the efficiency of labour grows at a 3 percent rate, then the steady state total output grows at what percent rate
Using the ADI-IA (inflation adjustment) framework, explain how a rise in energy prices would affect output and inflation in the short run.
The constant per unit price of M is $30; the constant per unit price of T is $20; and Bharat has $300 to spend on these activities. If the price of M rises to $35, what is the appropriate compensating variation.
Can all important information be conveyed in the standard length?
Ezzell Corporation issued perpetual preferred stock with a 11% annual dividend. The stock currently yields 8%, and its par value is $100. What is the stock's value What stock price is expected 1 year from now
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