Concept explainers
(a)
The correlation matrix.
To identify: The multicollinearity.
(b)
The least-squares regression equation.
(c)
To test: The provided hypothesis.
(d)
To test: The provided hypothesis.
To test: The provided hypothesis.
To test: The provided hypothesis.
To test: The provided hypothesis.
To explain: Which explanatory variable should be removed.
(e)
The regression model with remaining explanatory variables.
To test: The hypothesis.
To test: The hypothesis.
To test: The hypothesis.
(f)
To draw: The residual plot.
To draw: The boxplot.
To draw: The normal plot.
(g)
To interpret: The regression coefficient obtained in part (e).
(h)
The value of R 2 .
To interpret: The value of
The value of adjusted R 2 .
To interpret: The value of adjusted
(i)
The 95% confidence interval.
To interpret: The 95% confidence interval.
The 95% prediction interval.
To interpret: The results of the confidence and prediction intervals.
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Statistics: Informed Decisions Using Data; Student Solutions Manual; My StatLab Glue-in Access Card; Sticker for Glue-In Packages (5th Edition)
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