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Unformatted text preview: Statistics 512: Problem Set No. 4 Due September 25, 2009 1. Consider the following SAS output giving 5 confidence intervals for the mean of Y . If you wanted to guarantee that joint coverage of the five confidence intervals was at least 95%, what confidence level would you use when forming each interval, using the Bonferroni correction? Compute this adjusted confidence interval for the mean of Y when X = 5. (Note that some observations have been omitted from the output.) Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 1 16183 16183 805.62 <.0001 Error 16 321.39597 20.08725 Corrected Total 17 16504 Root MSE 4.48188 RSquare 0.9805 Dependent Mean 64.00000 Adj RSq 0.9793 Coeff Var 7.00294 Parameter Estimates Parameter Standard Variable DF Estimate Error t Value Pr > t Intercept 12.32215 2.564350.91 0.3786 x 1 14.73826 0.51926 28.38 <.0001 Output Statistics Dep Var Predicted Std Error Obs x y Value Mean Predict 95% CL Mean Residual 3 5 78.0000 71.3691 1.08781....
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This note was uploaded on 03/15/2012 for the course STAT 512 taught by Professor Staff during the Fall '08 term at Purdue.
 Fall '08
 Staff
 Statistics

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