week_five_quiz

# week_five_quiz - 1 A B C D What is the variable used to...

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1. What is the variable used to predict the value of another called? A) Independent B) Dependent C) Correlation D) Determination 2. Based on the regression equation, we can A) predict the value of the dependent variable given a value of the independent variable. B) predict the value of the independent variable given a value of the dependent variable. C) measure the association between two variables. 3. What is the range of values for a coefficient of correlation? A) 0 to +1.0 B) –3 to +3 inclusive C) –1.0 to +1.0 inclusive D) Unlimited range 4. What is the general form of the regression equation? A) Y ' = ab B) Y ' = a + bX C) Y ' = a bX D) Y ' = abX 5. Which value of r indicates a stronger correlation than 0.40? A) –0.30 B) –0.50 C) +0.38 D) 0 6. Suppose the least squares regression equation is Y ' = 1202 + 1133 X . When X = 3, what does Y ' equal? A) 5,734 B) 8,000 C) 4,601 D) 4,050 7. In the least squares equation, Y ' = 10 + 20 X , the value of 20 indicates A) the Y intercept. B)

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week_five_quiz - 1 A B C D What is the variable used to...

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