Reference no: EM131087552
High-alumina refractory castables have been extensively investigated in recent years because of their significant advantages over other refractory brick of the same class-lower production and application costs, versatility, and performance at high temperatures. The accompanying data on x = viscosity (MPa ? s) and y = free flows%d was read from a graph in the article "Processing of Zero Cement Self-Flow
Alumina Cas tables" (The Amer. Ceramic Soc. Bull., 1998: 60-66):
a. Compute the predicted values and residuals, and then SSE and s2 .
b. Compute and interpret the coefficient of multiple determination.
c. The estimated SD 
Does the quadratic predictor belong in the regression model?
d. The estimated SD of ß1 is .4050. Use this and the information in (c) to obtain joint CIs for the linear and quadratic regression coefficients with a joint confidence level of (at least) 95%.
e. The estimated SD of µY.400 is 1.198. Calculate a 95% CI for true average free-flow when viscosity = 400 and also a 95% PI for free-flow resulting from a single observation made when viscosity = 400, and compare the intervals.
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Option for lowering the ph
: After treating the water you need to decrease the pH back to 6.5. The water is held in a 200,000 gallon "pond". a. You have a 3 M HCl solution. How many mLs of this solution are required to change the pH from 9.5 to 6.5?
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Comparison of energy and exergy efficiency for solar box
: The accompanying data on y 5 energy output (W) and x = temperature difference (°K) was provided by the authors of the article "Comparison of Energy and Exergy Efficiency for Solar Box and Parabolic Cookers" (J. of Energy Engr., 2007: 53-62).
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Extracting the amine with dichloromethane
: Why would no amine be extracted if NaOH is not added to the amine salt prior to extracting the amine with dichloromethane?
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Effects of cold and warm temperatures on springback
: The accompanying data was extracted from the article "Effects of Cold and Warm Temperatures on Springback of Aluminum-Magnesium Alloy 5083- H111" (J. of Engr. Manuf., 2009: 427-431). The response variable is yield strength (MPa), and the predicto..
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High-alumina refractory castables
: High-alumina refractory castables have been extensively investigated in recent years because of their significant advantages over other refractory brick of the same class-lower production and application costs, versatility, and performance at high..
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Relationship for women who competed in multiple races
: relationship for women who competed in multiple races.
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A cone and plate viscometer at six different cone speeds
: The viscosity (y) of an oil was measured by a cone and plate viscometer at six different cone speeds (x). It was assumed that a quadratic regression model was appropriate, and the estimated regression function resulting from the n = 6 observations..
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Find the vapour pressure of water
: A certain quantity of gas occupies 200 ml when collected over water at 15 degree C & 745 mm pressure. It occupies 182.6 ml in dry state at NTP. Find the vapour pressure of water at 15 degree C?
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The fibonacci sequence of numbers occurs in various
: The article from which the data in Exercise 20 was obtained also gave the accompanying data on the composite mass/outer fabric mass ratio for high-quality fabric specimens
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