Exam 16: Introduction to Regression

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A set of X and Y scores has a regression equation with a slope of b = 4.If the mean for the X values is M_X = 2 and the mean for the Y values is M_Y = 6, then what is the Y-intercept value for the regression equation?

(Multiple Choice)

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Question 61

A set of n = 6 pairs of X and Y values has a Pearson correlation of r = 0.80 and SS_Y = 100.The standard error of estimate for the regression equation is √36/4 = 3 points.

(True/False)

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Question 62

The point defined by X = 2 and Y = -1 is located on the line defined by the equation Y = 2X - 3.

(True/False)

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Question 63

For linear regression, the value of SS_residual can be computed directly by Σ(Y - Ŷ)².

(True/False)

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Question 64

For the regression equation, Ŷ = -2X + 6, what can be determined about the correlation between X and Y?

(Multiple Choice)

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Question 65

For which of the following correlations would the data points be most widely scattered around the regression line?

(Multiple Choice)

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Question 66

An analysis of regression is used to test the significance of a linear regression equation based on a sample of n = 20 individuals.What are the df values for the F-ratio?

(Multiple Choice)

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Question 67

The F-ratio evaluating the significance of a linear regression equation based on n = 10 pairs of X and Y scores has df = 1, 8.

(True/False)

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Question 68

The multiple regression with two predictor variables is computed for a sample of n = 25 participants.What is the value for degrees of freedom for the unpredicted portion of the Y-score variance, MS_residual?

(Multiple Choice)

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Question 69

For a regression equation with a slope of b = 3, if M_X = 3 and M_Y = 10 then the Y-intercept for the equation is 1.

(True/False)

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Question 70

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A set of X and Y scores has a regression equation with a slope of b = 4.If the mean for the X values is M_X = 2 and the mean for the Y values is M_Y = 6, then what is the Y-intercept value for the regression equation?

A set of n = 6 pairs of X and Y values has a Pearson correlation of r = 0.80 and SS_Y = 100.The standard error of estimate for the regression equation is √36/4 = 3 points.

The point defined by X = 2 and Y = -1 is located on the line defined by the equation Y = 2X - 3.

For linear regression, the value of SS_residual can be computed directly by Σ(Y - Ŷ)².

For the regression equation, Ŷ = -2X + 6, what can be determined about the correlation between X and Y?

For which of the following correlations would the data points be most widely scattered around the regression line?

An analysis of regression is used to test the significance of a linear regression equation based on a sample of n = 20 individuals.What are the df values for the F-ratio?

The F-ratio evaluating the significance of a linear regression equation based on n = 10 pairs of X and Y scores has df = 1, 8.

The multiple regression with two predictor variables is computed for a sample of n = 25 participants.What is the value for degrees of freedom for the unpredicted portion of the Y-score variance, MS_residual?

For a regression equation with a slope of b = 3, if M_X = 3 and M_Y = 10 then the Y-intercept for the equation is 1.

Introduction to Statistics

Frequency Distributions

Central Tendency

Variability

Z-Scores

Probability

The Distribution of Sample Means

Introduction to Hypothesis Testing

Introduction to the T Statistic

The T Test for Two Independent Samples

The T Test for Two Related Samples

Introduction to Analysis of Variance

Repeated-Measures Anova

Two-Factor Analysis of Variance

Correlation

Chi-Square Tests

The Binomial Test

Choosing the Right Statistics

Filters

Exam 16: Introduction to Regression

A set of X and Y scores has a regression equation with a slope of b = 4.If the mean for the X values is MX = 2 and the mean for the Y values is MY = 6, then what is the Y-intercept value for the regression equation?

A set of n = 6 pairs of X and Y values has a Pearson correlation of r = 0.80 and SSY = 100.The standard error of estimate for the regression equation is √36/4 = 3 points.

The point defined by X = 2 and Y = -1 is located on the line defined by the equation Y = 2X - 3.

For linear regression, the value of SSresidual can be computed directly by Σ(Y - Ŷ)2.

For the regression equation, Ŷ = -2X + 6, what can be determined about the correlation between X and Y?

For which of the following correlations would the data points be most widely scattered around the regression line?

An analysis of regression is used to test the significance of a linear regression equation based on a sample of n = 20 individuals.What are the df values for the F-ratio?

The F-ratio evaluating the significance of a linear regression equation based on n = 10 pairs of X and Y scores has df = 1, 8.

The multiple regression with two predictor variables is computed for a sample of n = 25 participants.What is the value for degrees of freedom for the unpredicted portion of the Y-score variance, MSresidual?

For a regression equation with a slope of b = 3, if MX = 3 and MY = 10 then the Y-intercept for the equation is 1.

Introduction to Statistics

Frequency Distributions

Central Tendency

Variability

Z-Scores

Probability

The Distribution of Sample Means

Introduction to Hypothesis Testing

Introduction to the T Statistic

The T Test for Two Independent Samples

The T Test for Two Related Samples

Introduction to Analysis of Variance

Repeated-Measures Anova

Two-Factor Analysis of Variance

Correlation

Chi-Square Tests

The Binomial Test

Choosing the Right Statistics

Filters

A set of X and Y scores has a regression equation with a slope of b = 4.If the mean for the X values is M_X = 2 and the mean for the Y values is M_Y = 6, then what is the Y-intercept value for the regression equation?

A set of n = 6 pairs of X and Y values has a Pearson correlation of r = 0.80 and SS_Y = 100.The standard error of estimate for the regression equation is √36/4 = 3 points.

For linear regression, the value of SS_residual can be computed directly by Σ(Y - Ŷ)².

The multiple regression with two predictor variables is computed for a sample of n = 25 participants.What is the value for degrees of freedom for the unpredicted portion of the Y-score variance, MS_residual?

For a regression equation with a slope of b = 3, if M_X = 3 and M_Y = 10 then the Y-intercept for the equation is 1.