Because glass is not subject to radiation damage, encapsulation of waste in glass is considered to be
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y = Amount of silicon (in parts per million) found in solution at end of experiment. (This is both a measure of the degree of breakdown in the glass and a proxy for the amount of radioactive species released into the environment.)
x1 = Temperature (°C) of the corrosion bath
x2 = 1 if waste type TDS-3A, 0 if not
x3 = 1 if waste type FE, 0 if not (Waste type AL is the base level.) Suppose we want to model amount y of silicon as a function of temperature (x1) and type of waste (x2, x3).
a. Write a model that proposes parallel straight-line relationships between amount of silicon and temperature, one line for each of the three waste types.
b. Add terms for the interaction between temperature and waste type to the model of part a.
c. Refer to the model of part b. For each waste type, give the slope of the line relating amount of silicon to temperature.
d. Explain how you could test for the presence of temperature-waste type interaction.
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Related Book For
Statistics For Business And Economics
ISBN: 9780321826237
12th Edition
Authors: James T. McClave, P. George Benson, Terry T Sincich
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