APS Ch 3 True False Review Bell Ringer R11192020
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Last updated about 5 years ago
12 questions
1
Correlation requires clearly identified explanatory and response variables.
Correlation requires clearly identified explanatory and response variables.
1
Regression requires clearly identified explanatory and response variables.
Regression requires clearly identified explanatory and response variables.
1
Scatterplots require that both variables be quantitative.
Scatterplots require that both variables be quantitative.
1
Every LSRL will pass through the coordinate point (mean of x, mean of y).
Every LSRL will pass through the coordinate point (mean of x, mean of y).
1
Correlation changes as units of the variables change.
Correlation changes as units of the variables change.
1
The LSRL minimizes the distances between the actual response variable values and the predicted values.
The LSRL minimizes the distances between the actual response variable values and the predicted values.
1
Switching the explanatory and response variables will NOT change the least-squares regression line.
Switching the explanatory and response variables will NOT change the least-squares regression line.
1
The slope of the line is very senstive to outliers with large residuals.
The slope of the line is very senstive to outliers with large residuals.
1
The value of the coefficient of determination that is close to 1 does NOT guarantee that the relationship between the variables is linear.
The value of the coefficient of determination that is close to 1 does NOT guarantee that the relationship between the variables is linear.
1
The value of the coefficient determination close to 1 show that the explanatory variable is the cause of the response variable.
The value of the coefficient determination close to 1 show that the explanatory variable is the cause of the response variable.
1
The x variable is known as the response variable.
The x variable is known as the response variable.
1
The strongest correlation is equal to only 1.
The strongest correlation is equal to only 1.