QMB 3200 Final Exam UPDATED
Questions and 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 ANSWER- ✔✔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
ANSWER- ✔✔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 ANSWER- ✔✔True
A relationship is linear if the scatter plot of the independent and dependent variables has a
straight-line pattern. - CORRECT ANSWER- ✔✔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 ANSWER-
✔✔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 ANSWER- ✔✔False
The ________ measures how consistent the slope of the regression equation would be if
several sets of samples from the population were selected and the regression equation were
derived for each of them. - CORRECT ANSWER- ✔✔standard error of the slope
A software company would like to test if the standard deviation for the age of "gamers"
(those that routinely play video games) is equal to 6.0 years. Which of the following would
Questions and 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 ANSWER- ✔✔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
ANSWER- ✔✔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 ANSWER- ✔✔True
A relationship is linear if the scatter plot of the independent and dependent variables has a
straight-line pattern. - CORRECT ANSWER- ✔✔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 ANSWER-
✔✔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 ANSWER- ✔✔False
The ________ measures how consistent the slope of the regression equation would be if
several sets of samples from the population were selected and the regression equation were
derived for each of them. - CORRECT ANSWER- ✔✔standard error of the slope
A software company would like to test if the standard deviation for the age of "gamers"
(those that routinely play video games) is equal to 6.0 years. Which of the following would
