Question 1

Regression is typically used to test cause-effect relationships.

Accepted Answer

A) True 
 B)False

Question 2

When we standardize paired data we

Accepted Answer

A)  divide everything by the standard deviation of X . 
B)  convert X to a T score. 
C)  convert both X and Y to z scores. 
D)  subtract the mean from each value of X and Y . 
A)  divide everything by the standard deviation of X . 
B)  convert X to a T score. 
C)  convert both X and Y to z scores. 
D)  subtract the mean from each value of X and Y .

Question 3

The regression line always passes through the point

Accepted Answer

A)  0, 0 
B)    ,   
C)    , 0 
D)  a, b 
A)  0, 0 
B)    ,   
C)    , 0 
D)  a, b

Question 4

The intercept of a regression line is

Accepted Answer

A)  the value of Ŷ when X=0. 
B)  always greater than 0. 
C)  significant when the correlation is significant. 
D)  never informative. 
A)  the value of Ŷ when X=0. 
B)  always greater than 0. 
C)  significant when the correlation is significant. 
D)  never informative.

Question 5

The regression equation can be used to estimate the value of the criterion variable based on knowing the value of the predictor variable.

Accepted Answer

A) True 
 B)False

Question 6

In the previous problem your best estimate of the intercept relating the total earning from the hours worked is

Accepted Answer

A)  -10. 
B)  0. 
C)  10. 
D)  We have no idea. 
A)  -10. 
B)  0. 
C)  10. 
D)  We have no idea.

Regression is typically used to test cause-effect relationships.

When we standardize paired data we

The regression line always passes through the point

The intercept of a regression line is

The regression equation can be used to estimate the value of the criterion variable based on knowing the value of the predictor variable.

In the previous problem your best estimate of the intercept relating the total earning from the hours worked is

Introduction

Basic Concepts

Displaying Data

Measures of Central Tendency

Measures of Variability

The Normal Distribution

Basic Concepts of Probability

Sampling Distributions and Hypothesis Testing

Correlation

Multiple Regression

Hypothesis Tests Applied to Means: One Sample

Hypothesis Tests Applied to Means: Two Related Samples

Hypothesis Tests Applied to Means: Two Independent Samples

Power

One-Way Analysis of Variance

Factorial Analysis of Variance

Repeated-Measures Analysis of Variance

Chi-Square

Nonparametric and Resampling Statistical Tests

Meta-Analysis

Filters

Exam 10: Regression

Regression is typically used to test cause-effect relationships.

When we standardize paired data we

The regression line always passes through the point

The intercept of a regression line is

The regression equation can be used to estimate the value of the criterion variable based on knowing the value of the predictor variable.

In the previous problem your best estimate of the intercept relating the total earning from the hours worked is

Introduction

Basic Concepts

Displaying Data

Measures of Central Tendency

Measures of Variability

The Normal Distribution

Basic Concepts of Probability

Sampling Distributions and Hypothesis Testing

Correlation

Multiple Regression

Hypothesis Tests Applied to Means: One Sample

Hypothesis Tests Applied to Means: Two Related Samples

Hypothesis Tests Applied to Means: Two Independent Samples

Power

One-Way Analysis of Variance

Factorial Analysis of Variance

Repeated-Measures Analysis of Variance

Chi-Square

Nonparametric and Resampling Statistical Tests

Meta-Analysis

Filters