12 online quiz study

12 online quiz study - The slope of the regression line is...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
CHAPTER 12 On a graph of a Pearson’s r of .87, - the data points will fall close to the regression line Error in prediction means - the difference between what was predicted and what actually happened When graphing a regression line, we do not plot the Y -intercept because - numbers skipped on either the X- or Y-axis will distort the Y-intercept When data are entered into SPSS, the output for regression analysis will tell us - all of these are true ____ is the symbol for___. -standard error of the estimate With a positive Pearson’s r, the slope of the regression line will be ___. - positive When Pearson’s r is 1.00, error will be equal to - 0 Error in prediction can be thought of as - the standard deviation of predicted values When Pearson’s r is -1.00, error will be equal to - 0 Linear regression can be explained as - all of these are true
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: The slope of the regression line is symbolized by ___.- b Prior to the prediction equation, we should calculate ___.- r obt The point at which the regression line crosses the Y-axis, also known as the Y-intercept, is symbolized by ___.- a If two variables are correlated, - prediction of one variable from another is reasonable. The regression line formula is ___.- Y’= bX + a The simplest way to place a regression line on a scatterplot is to- predict Y-values based on two X-values from the X-axis If Pearson’s r is -1.00, prediction will be- strong Multiple regression is used when we have- more than one predictor in an equation In the prediction equation, which symbol is not replaced with a value until we predict a value on Y?- X Which of the following is not needed when calculating error?-b...
View Full Document

This note was uploaded on 03/11/2008 for the course EDPSY 101 taught by Professor Amlund,jeannet during the Fall '07 term at Penn State.

Page1 / 2

12 online quiz study - The slope of the regression line is...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online