Question 1

When we use multiple predictor variables, we are using a _____ analysis, which is analogous to the _____.

Accepted Answer

A)  multiple regression; one-way ANOVA 
B)  simple regression; one-way ANOVA 
C)  multiple regression; two-way ANOVA 
D)  simple regression; two-way ANOVA 
A)  multiple regression; one-way ANOVA 
B)  simple regression; one-way ANOVA 
C)  multiple regression; two-way ANOVA 
D)  simple regression; two-way ANOVA C

Question 2

If x = 20, predict y, given the following regression equation: y' = 12 + .25x.

Accepted Answer

A)  17 
B)  29 
C)  21 
D)  34 
A)  17 
B)  29 
C)  21 
D)  34 A

Question 3

The formula for calculating the slope for a regression line is:

Accepted Answer

A)  r[$\sigma$x /$\sigma$y]. 
B)  r[$\sigma$y /$\sigma$x]. 
C)  r[zy / zx]. 
D)  r[zx / zy]. 
A)  r[$\sigma$x /$\sigma$y]. 
B)  r[$\sigma$y /$\sigma$x]. 
C)  r[zy / zx]. 
D)  r[zx / zy]. B

Question 4

The formula for calculating the y-intercept for a regression line is:

Accepted Answer

A)  $ \bar{Y}-b(\bar{X}) $ 
B)  $ \bar{X}-b(\bar{Y}) $ 
C)  $ \bar{Y}-a(\bar{X}) $ 
D)  $ \bar{X}-\alpha(\bar{Y}) $ 
A)  $ \bar{Y}-b(\bar{X}) $ 
B)  $ \bar{X}-b(\bar{Y}) $ 
C)  $ \bar{Y}-a(\bar{X}) $ 
D)  $ \bar{X}-\alpha(\bar{Y}) $

Question 5

If x = 25, predict y, given the following regression equation: y' = 17 + .56x.

Accepted Answer

A)  21 
B)  31 
C)  51 
D)  61 
A)  21 
B)  31 
C)  51 
D)  61

Question 6

The best-fitting straight line drawn through the center of a scatterplot is the:

Accepted Answer

A)  regression coefficient. 
B)  Pearson coefficient. 
C)  regression line. 
D)  coefficient of determination. 
A)  regression coefficient. 
B)  Pearson coefficient. 
C)  regression line. 
D)  coefficient of determination.

Question 7

In the formula for a regression line, which symbol represents the y-intercept?

Accepted Answer

A)  Y' 
B)  a 
C)  b 
D)  X 
A)  Y' 
B)  a 
C)  b 
D)  X

Question 8

The formula to determine a regression line is:

Accepted Answer

A)  Y' = bX + a. 
B)  Y' = aX + b. 
C)  X' = bY' + a. 
D)  a' = bX + Y. 
A)  Y' = bX + a. 
B)  Y' = aX + b. 
C)  X' = bY' + a. 
D)  a' = bX + Y.

Question 9

In the formula for a regression line, which symbol represents the slope?

Accepted Answer

A)  Y' 
B)  a 
C)  b 
D)  X 
A)  Y' 
B)  a 
C)  b 
D)  X

When we use multiple predictor variables, we are using a _ analysis, which is analogous to the _.

If x = 20, predict y, given the following regression equation: y' = 12 + .25x.

The formula for calculating the slope for a regression line is:

The formula for calculating the y-intercept for a regression line is:

If x = 25, predict y, given the following regression equation: y' = 17 + .56x.

The best-fitting straight line drawn through the center of a scatterplot is the:

In the formula for a regression line, which symbol represents the y-intercept?

The formula to determine a regression line is:

In the formula for a regression line, which symbol represents the slope?

Science and Statistics

Organizing Data, Variables and Measurement

Measures of Central Tendency

Measures of Variation

Standard Scores Z Scores

Probability, Hypothesis Testing and Inferential Statistics

The Single-Sample Z Test

The Single-Sample T Test

The T Test for Independent Groups Samples

T Test for Correlated Groups Samples

Comparing More Than Two Groups

One-Way Between-Subjects Analysis of Variance Anova

One-Way Repeated Measures Anova

Using Designs With More Than One Independent Variable and Two-Way Between-Subjects Anova

Correlational Research and Correlation Coefficients

Chi-Square Tests

Tests for Ordinal Data

Filters

Exam 16: Advanced Correlational Techniques: Regression Analysis

When we use multiple predictor variables, we are using a _____ analysis, which is analogous to the _____.

If x = 20, predict y, given the following regression equation: y' = 12 + .25x.

The formula for calculating the slope for a regression line is:

The formula for calculating the y-intercept for a regression line is:

If x = 25, predict y, given the following regression equation: y' = 17 + .56x.

The best-fitting straight line drawn through the center of a scatterplot is the:

In the formula for a regression line, which symbol represents the y-intercept?

The formula to determine a regression line is:

In the formula for a regression line, which symbol represents the slope?

Science and Statistics

Organizing Data, Variables and Measurement

Measures of Central Tendency

Measures of Variation

Standard Scores Z Scores

Probability, Hypothesis Testing and Inferential Statistics

The Single-Sample Z Test

The Single-Sample T Test

The T Test for Independent Groups Samples

T Test for Correlated Groups Samples

Comparing More Than Two Groups

One-Way Between-Subjects Analysis of Variance Anova

One-Way Repeated Measures Anova

Using Designs With More Than One Independent Variable and Two-Way Between-Subjects Anova

Correlational Research and Correlation Coefficients

Chi-Square Tests

Tests for Ordinal Data

Filters

When we use multiple predictor variables, we are using a _ analysis, which is analogous to the _.