Concept explainers
a.
Construct a linear regression model for the data.
Test whether there is enough evidence to conclude that
Test whether there is enough evidence to conclude that
b.
Construct a quadratic regression model for the data.
Test whether there is enough evidence to conclude that
Test whether there is enough evidence to conclude that
Test whether there is enough evidence to conclude that
c.
Construct a cubic regression model for the data.
Test whether the coefficients are significantly different from zero.
d.
Find the best model among the three models obtained in part (a), part (b) and part (c).
e.
Estimate the flow rate of paraffinic hydrocarbons when the specific gravity is 0.83 using the most appropriate method.
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