Relationship between two variables and regression analysis

  

3 [8pts] Annual Wine Consumption and Heart Disease Death Rate data was collected in 1994 from some selected countries by University of California, San Diego. Use this data to answer the questions below. Use SPSS to do your computations (See the document on the SPSS practice for this segment under reading assignment and study material as guide).

(a) Identify the response variable and the independent variable in this study.

(b) Make a scatterplot of Average Annual Consumption (AAC) against Heart Disease Death Rate (HDDR). Describe the pattern in the plot. (Hint: What does the scatterplot tell you, interpret in simple language)  

(c) Does the scatterplot display any outliers? Explain.

(d) Compute the correlation coefficient and draw conclusions (in simple language), on the strength of the association between the two variables.

4 [16pts]

Continue the analysis of the data in part 3 above. 

(a) Find the regression line of HDDR on AAC. Write down the regression line to predict HDDR from AAC. (Remember to save the Standardized Residuals, you’ll need them later to check the validity of your analysis)

(b) What is the slope of the fitted regression line? Explain in simple language what the slope value indicates about the relationship between HDDR and AAC 

(c) What is the y-intercept of this line? Express in simple language what the y-intercept says about the relationship of HDDR and AAC.

(d) What is the coefficient of determination R2 for the regression line? Explain in simple language what the R2 value says about the regression line to predict HDDR.

(e) Use SPSS to create the residual plot defined as the scatterplot of the standardized residuals versus AAC. Describe (interpret) the pattern displayed by the residuals. Are the points randomly scattered around the zero line? If not, do they show deviations from linearity? 

(f) Are there observations with large residuals? Explain your answer.

(g) You want to predict HDDR given that the AAC is 3.5liters. Use the regression line to compute the predicted HDDR.

(h) Suppose you want to predict HDDR given that the AAC is 10 liters. Explain if you can still use the regression line to compute the prediction. 

(i) From your Analysis, What did you found out? Do you think wine consumption help health disease? Explain. According to your R2 what percentage is due to other factors? What are your suggested factors that could contribute to healthy heart?

Order a unique copy of this paper
(550 words)

Approximate price: $22

Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

We value our customers and so we ensure that what we do is 100% original..
With us you are guaranteed of quality work done by our qualified experts.Your information and everything that you do with us is kept completely confidential.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

The Product ordered is guaranteed to be original. Orders are checked by the most advanced anti-plagiarism software in the market to assure that the Product is 100% original. The Company has a zero tolerance policy for plagiarism.

Read more

Free-revision policy

The Free Revision policy is a courtesy service that the Company provides to help ensure Customer’s total satisfaction with the completed Order. To receive free revision the Company requires that the Customer provide the request within fourteen (14) days from the first completion date and within a period of thirty (30) days for dissertations.

Read more

Privacy policy

The Company is committed to protect the privacy of the Customer and it will never resell or share any of Customer’s personal information, including credit card data, with any third party. All the online transactions are processed through the secure and reliable online payment systems.

Read more

Fair-cooperation guarantee

By placing an order with us, you agree to the service we provide. We will endear to do all that it takes to deliver a comprehensive paper as per your requirements. We also count on your cooperation to ensure that we deliver on this mandate.

Read more

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency