Exam 17: Bivariate Correlation and Regression

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If a marketer wants to correlate an ordinal ranking of TV sets with the nominal scale variable gender,the marketer would have to use_____________.

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E

A scatter plot compares actual data to a predicted relationship between 2 variables.

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In the equation for regression analysis,the letter X represents the independent variable.

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Some of the results of a regression analysis are as follows: SSE = 52,500 SST = 485,200 Compute the Coefficient of Determination (R²)and interpret.

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In a regression equation,which symbol represents the dependent variable?

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A R = -.95 is always weaker than +.95,because positive relationships are more significant than negative relationships.

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A correlation analysis between sales and sales training scores results in R = +.98.Which of the following best interprets the relationship between sales and sales training?

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What are the possible values in correlation analysis?

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In correlation analysis,the closer the value of R is to -1 or +1,the stronger the correlation between the two variables in question.

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An R² of 0 indicates no relationship between variables.

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An R² of .05 would indicate:

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Dependent variables are also known as predictor variables.

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In regression,the higher the _________ value,the more likely the relationship between variables is significant.

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The degree to which changes in one variable (the dependent variable)are associated with changes in another is which of the following?

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The coefficient of correlation describes the degree of association between X and Y.

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In a regression output in SPSS,R² represents:

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The correct formula for the analysis of variance used to test the significance of results is F = MSR / MSE.

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When the value of one variable increases at exactly the same rate as another variable decreases,this is said to be a ___________________relationship.

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In regression,the unexplained variation is referred to as error sum of squares (SSE).

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A regression equation that estimates the number of hours of study that impact a test score would most likely produce what type of relationship?

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