13.For a given value of X aconfidence interval for an estimate of a mean value ofY will be larger than theprediction interval for an individual value ofY.

True False

Question 14.14.A regression equation found using the least squares principle is the best-fitting line because the sum of the vertical deviations between the actual and estimated values is minimized.

True False

Question 15.15.The standard error of the estimate can be calculated from the ANOVAvaluescontained inthe excel regression solution.

True False

Question 16.16.The sum of the residuals (Y-) about the regression line=0.

True False

Question 17.17.In testing a samplecorrelation coefficient for statistical significance if the p-value is greater than alpha you conclude that you have a statistically significant relationship between x and y.

True False

Question 18.18.One assumption underlying linear regression is that for each value ofXthere is apopulation ofYvalues that isnormallydistributed.

True False

Question 19.19.In introducing additional independent variables in a multiple regression problem one objective is toincrease the multiple coefficient of determination.

True False

Question 20.20.Multiple regression analysis examines the relationship of several dependent variableswith the independent variable.

True False

Question 21.21.To test the global hypothesis for statistical significance in a multiple regression analysis,the F-statistic or significance Fis used.

True False

Question 22.22.In a multiple regression analysis with two independent variables, the multiple standard error of estimate measures the variation of the dependent variable about a regression plane.

True False