exercise 30 calculating multiple linear regression
Written for
American Military University
MATH 302
All documents for this subject (54)
Seller
Follow
Angelicer
Reviews received
Content preview
Exercise 30: Calculating Multiple Linear Regression
1. Write the newly computed regression equation, predicting months to RN to BSN program
completion.
a. Y hat= -4.235x1 + -1.630x2 +17.309
2. Why have the values in the equation changed slightly from the first analysis?
a. Actual values create variance in the equation
3. Using SPSS, create a scatterplot of predicted values and residuals that assists us in identifying
heteroscedasticity. Do the data meet the homoscedasticity assumptions? Provide a rationale
for your answer.
a. Yes, as homoscedasticity reflects equal variance of both variables. For every x value, the
distribution of y values is equally variable.
4. Using the new regression equation, compute the predicated months to RN to BSN program
completion if a student’s number of degrees in 1 and is enrolled in the online program. Show
your calculations.
a. Y hat= -4.235x1 + -1.630x2 +17.309= -4.235(1) + -1.630(1) +17.309= 11.444
5. Using the new regression equation, compute the predicted months to RN to BSN program
completion if a student’s number of degrees is 2 and is enrolled in the in-seat program. Show
your calculations.
a. Y hat= -4.235x1 + -1.630x2 +17.309= -4.235(2) + -1.630(2) +17.309= 29.039
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 EFT, 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 this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Angelicer. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R117,98. You're not tied to anything after your purchase.