QMB 3200 Final (Latest )
Premium Questions and Answers Study
Guide (Correct and Verified)
• 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? -✓✓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. -✓✓True
• A relationship is linear if the scatter plot of the independent and dependent
variables has a straight-line pattern. -✓✓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.
-✓✓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. -✓✓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. -✓✓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 be the correct hypothesis statement? -✓✓H0: sigma squared
equals 36.0
H1: sigma squared not equal to 36.0
• A Type I error occurs when performing one-way ANOVA when we conclude that
the _______. -✓✓population means are not equal when, in fact, they are equal.
Premium Questions and Answers Study
Guide (Correct and Verified)
• 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? -✓✓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. -✓✓True
• A relationship is linear if the scatter plot of the independent and dependent
variables has a straight-line pattern. -✓✓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.
-✓✓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. -✓✓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. -✓✓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 be the correct hypothesis statement? -✓✓H0: sigma squared
equals 36.0
H1: sigma squared not equal to 36.0
• A Type I error occurs when performing one-way ANOVA when we conclude that
the _______. -✓✓population means are not equal when, in fact, they are equal.
