Bst 322 Week 4 Exam Questions & Answers Correct 100%

Covariate {Ans: }regression equation {Ans: Y'= a +bX is the formula for best fiting straight line to charecterize the linear relationship between X and Y.}Canonical analysis {Ans: A result of canonical analysis, the underlying principle of forming linear combonations is the same, but now several variables are on both sides of the equation. Pg 293}Multicollinearity {Ans: Can occur in multiple regression analysis when the independent variable's are too highly intercorrelated}linear regression {Ans: an algorithm to find a precise line of fit for a set of data}Analysis of covariance (ANCOVA) {Ans: Researchers use this to make comparisons between two or more group me after statistically removing the effect of one or more variable and a dependent variable}Orthogonal coding {Ans: When researchers have specific hypothesis about group differences sometimes use orthogonal coding to test these differences}Dummy coding {Ans: Involves creating a series of dichotomous variables that contrast members in one category with everyone else}Effect coding {Ans: Similar to dummy coding except that the reference group is assigned -1 rather than zero for each newly created table}Residulas {Ans: The differences between Y and Y'}stimultaneous regression model {Ans: Pg 233}Step-wise regression model