ADMS 3300 Study Guide - Final Guide: Tachykinin Receptor 1, Stepwise Regression, Homoscedasticity

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Sample coefficient of correlation: r= sxy sx sy. Test statistic for the 1 t= b1 1 sb1. Confidence interval estimator of 1 b1 t / 2 sb 1 note: v = n-2. ( y y)2= ( y y)2 sse. Confidence interval estimator of the expected value of y: y t . Multiple reg. equation (sample): y=b0+b1 x1+b2 x2+ +bk xk. Standard error of estimate: s = sse n k 1. Test statistic for the i t= bi i sbi. ( y y)2/(n 1) n k 1](1 r2) adjusted r 2=1 [ n 1. Mean square for error: mse = sse/ (n-1-k) Coefficient of correlation: used to measure the strength of the linear relationship between two interval variables. Coefficient of determination: the proportion (%) of the variation in the dependent variable, y that is explained by the variation in the independent variable, x.

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