Consider the regression model fit to the shear strength of
Chapter 12, Problem 53E(choose chapter or problem)
Consider the regression model fit to the shear strength of soil in Exercise 12-5.
(a) Calculate \(95 \%\) confidence intervals on each regression coefficient.
(b) Calculate a \(95 \%\) confidence interval on mean strength when
\(x_{1}=18 \mathrm{ft} \text { and } x_{2}=43 \%\)
(c) Calculate \(95 \%\) prediction interval on strength for the same values of the regressors used in the previous part.
Equation Transcription:
Text Transcription:
95%
95%
x1=18 ft and x2=43%
95%
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