QMB 3200 FINAL EXAM QUESTIONS
WITH CORRECT ANSWERS
If the confidence interval for the regression slope includes zero, we would have some
evidence that beta
could be equal to zero, which would indicate that there may not be a relationship
between the dependent and independent variables. - Correct Answers -True
A professor would like to test the hypothesis that the average number of minutes that a
student needs to complete a statistics exam has a standard deviation that is less than
5.0 minutes. Which of the following would be the correct hypothesis statement? -
Correct Answers -H0: sigma squared greater than or equal to 25
H1: sigma squared less than 25
A coefficient of determination equal to zero indicates that there is no relationship
between the independent and dependent variables. - Correct Answers -True
A relationship is linear if the scatter plot of the independent and dependent variables
has a straight-line pattern. - Correct Answers -True
With one-way ANOVA, there will be a greater chance of rejecting the null hypothesis
when more variation in the data is due to the SSB rather than the SSW. - Correct
Answers -True
A dependent variable, x, explains the variation in another variable, which is called the
independent variable, y. - Correct Answers -False
An assumption of regression analysis is that the relationship between the independent
and dependent variables is linear. - Correct Answers -True
Consider the relationship between household income and square footage of the primary
residence. Determine whether the following statement is true.
Household income would be considered the independent variable. - Correct Answers -
True
Two-way ANOVA incorporates a blocking factor to account for variation outside of the
main factor in the hopes of increasing the likelihood of detecting a variation due to the
main factor. - Correct Answers -False
WITH CORRECT ANSWERS
If the confidence interval for the regression slope includes zero, we would have some
evidence that beta
could be equal to zero, which would indicate that there may not be a relationship
between the dependent and independent variables. - Correct Answers -True
A professor would like to test the hypothesis that the average number of minutes that a
student needs to complete a statistics exam has a standard deviation that is less than
5.0 minutes. Which of the following would be the correct hypothesis statement? -
Correct Answers -H0: sigma squared greater than or equal to 25
H1: sigma squared less than 25
A coefficient of determination equal to zero indicates that there is no relationship
between the independent and dependent variables. - Correct Answers -True
A relationship is linear if the scatter plot of the independent and dependent variables
has a straight-line pattern. - Correct Answers -True
With one-way ANOVA, there will be a greater chance of rejecting the null hypothesis
when more variation in the data is due to the SSB rather than the SSW. - Correct
Answers -True
A dependent variable, x, explains the variation in another variable, which is called the
independent variable, y. - Correct Answers -False
An assumption of regression analysis is that the relationship between the independent
and dependent variables is linear. - Correct Answers -True
Consider the relationship between household income and square footage of the primary
residence. Determine whether the following statement is true.
Household income would be considered the independent variable. - Correct Answers -
True
Two-way ANOVA incorporates a blocking factor to account for variation outside of the
main factor in the hopes of increasing the likelihood of detecting a variation due to the
main factor. - Correct Answers -False
