A second course in statistics regression analysis 7th by mendenhall ch09
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Chapter 9
Special Topics
in Regression
(Optional)
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Section 9.1
Introduction
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Section 9.2
Piecewise
Linear
Regression
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Figure 9.1 Relationship between
compressive strength (y) and water/cement
ratio (x)
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Figure 9.2 Slopes and y-intercepts
for piecewise linear regression
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Figure 9.3 SAS piecewise linear
regression printout
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continued
on next slide
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Inc.
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continued
on next slide
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Inc.
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Figure 9.4 MINITAB graph of
reading scores
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Figure 9.5 MINITAB analysis of
straight-line model for reading score
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Figure 9.6 MINITAB graph of reading
scores, with quadratic model results
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Figure 9.7 SAS analysis of piecewise
linear model for reading score
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Figure 9.8 MINITAB graph of predicting
reading scores using piecewise regression
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Section 9.3
Inverse
Prediction
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Figure 9.9 MINITAB analysis of
straight-line model, Example 9.3
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Figure 9.10 MINITAB scatterplot of data
and least squares line, Example 9.3
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Section 9.4
Weighted
Least Squares
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Figure 9.11 MINITAB printout of
straight-line model, Example 9.4
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Figure 9.12 MINITAB plot of
residuals against road length, x
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