Exam (elaborations)
Exercise 28 Calculating Pearson Product-Moment Correlation Coefficient
- Course
- MATH 302
- Institution
- American Military University
Exercise 28 Calculating Pearson Product-Moment Correlation Coefficient
[Show more]
Content preview
Exercise 28: Calculating Pearson Product-Moment Correlation Coefficient
1. If you have access to SPSS, compute the Shapiro-Wilk test of normality for the variables visitor
2. frequency and length of stay (as shown in Exercise 26). If you do not have access to SPSS, plot
the frequency distributions by hand. What do the results indicate?
-The Shapiro-Wilk p values for length of stay and visitor frequency were 0.242 and 0.155
respectively, indicating that the frequency distributions did not significantly deviate from
normality. In addition, visual inspection of the frequency distributions indicates that the
variables are approximately normally distributed.
2. What is the null hypothesis in the example?
-“There is no correlation between length of stay and visitor frequency among residents of
residential care facilities.”
3. What is the Pearson r between visitor frequency and length of stay?
-It is r=0.614
4. Is the r significant at alpha=0.05? Provide rationale.
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 Angelicer. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $6.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
73091 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now