Loose-leaf Version for The Basic Practice of Statistics 7e & LaunchPad (Twelve Month Access)
Loose-leaf Version for The Basic Practice of Statistics 7e & LaunchPad (Twelve Month Access)
7th Edition
ISBN: 9781319019334
Author: David S. Moore, William I. Notz, Michael A. Fligner
Publisher: W. H. Freeman
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Chapter 29.8, Problem 29.24AYK

a.

To determine

The regression equation for predicting tuition fees using year as explanatory variables.

b.

To determine

The predicted value of tuition and fees for the year 1971.

c.

To determine

Whether the predicted value in part b makes sense.

d.

To determine

To plot: The residual plot of the obtained regression model.

To explain: About the adequacy of linear fit using the obtained residual plot.

e.

To determine

Whether the regression model over estimates or underestimates the tuition fees values for the colleges in 1990s.

f.

To determine

To fit: The quadratic regression model for the data.

g.

To determine

To explain: Whether the quadratic model gives a good fit than linear model.

h.

To determine

To explain: Whether the quadratic model can be used to make inferences on the quadratic model.

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