Exam (elaborations)
QMB 3200 Final Exam.
- Course
- Institution
QMB 3200 Final Exam.
[Show more]
Seller
Follow
denicetho
Content preview
QMB 3200 Final ExamIf the confidence interval for the regression slope includeszero, we would have some
evidence that beta
could be equal tozero, which would indicate that there may not be a relationship
between the dependent and independent variables. - ANS-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 hypothesisstatement? -
ANS-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. - ANS-True
A relationship is linear if the scatter plot of the independent and dependent variables
has astraight-line pattern. - ANS-True
Withone-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. - ANS-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. - ANS-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. - ANS-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 videogames) is equal to 6.0 years. Which of the following
would be the correct hypothesisstatement? - ANS-H0: sigma squared equals 36.0
H1: sigma squared not equal to 36.0
A Type I error occurs when performingone-way ANOVA when we conclude that the
_______. - ANS-population means are not equalwhen, infact, they are equal.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller denicetho. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.30. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79223 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now