Sunday, October 13, 2013

Res/342 Week 4 Quiz

Week 4 Quiz Name: The true and pretended questions are worth 3 point each. The quick operate would say that in a bivariate scatter spell with 25 observations, a correlation of 0.45 is signifi pottytly different than vigour (but hardly barely). [?] True [ ] sour The least squares turnaround line is obtained when the sum of the shape residuals is minimized. [?] True [ ] False When using the least squares method, the column of residuals always sums to zero. [?] True [ ] False Negative coefficients in a retroversion usually indicate weak predictors. [ ] True [?] False Non-normality of the residuals from a retrogression is best detected by facial expression at the residual plots for each predictor. [?] True [ ] False The ergodic error term in a regression mould reflects all factors omitted from the model. [?] True [ ] False The unexplained sum of squares measures the variableness of the dependent variable about the mean of the Y values.
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the regression line the mean of the X values the Y-intercept Which of the pursual hear statistic is used to sum the normality assumption of the error in a regression model? t statistic. F statistic histogram of residuals. Kleins statistic Which of the following is not a characteristic of the F distribution? It is a continuous distribution. It can never be negative. It is a family ground on two sets of degrees of freedom. It descr ibes the ratio of two savor means. The ! sample coefficient of correlation can dictate from -1.00 up to 1.00 is also called Pearsons r. is well-tried for significance using a t-test. has all of the above properties.If you indirect request to get a in full essay, order it on our website: BestEssayCheap.com

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