Go to www.ablongman.com/george9e and click on the "Data Sets" link at the top of the page. Download the
Question 1.
Go to
www.ablongman.com/george9e
and click on the "Data Sets" link at the top of the page. Download the
divorce-studentversion.sav file
. You will need to open the file in SPSS to complete this assignment.
(Note: Only focus on the ddepre and dfeel2 variables for this assignment. Both depressing and feelings of hopelessness are measured via psychological tests assuming equal intervals and greater numbers representing more of that variable.)
A. In the body of your post include the following:
1. List the variables and explain their scale of measurement (nominal, ordinal, interval, or ratio).
2. What are the mean, median, mode, range, standard deviation, and variance for ddepre and dfeel2?
3. What is the correlation coefficient? Describe what you know about this correlation based on the coefficient, significance level, and the scatterplot created.
4. What conclusion might you draw from these results? Does one of these variables cause the other? Explain.
5. Identify the response and predictor variables.
6. What is the regression equation for this data set if you wanted to predict ddepre based on a dfeel2 score? Provide the specific equation with coefficients included.
7. What is the standard error of estimate? What does this number mean?
8. Make a prediction for ddepre based on the following dfeel2 scores:
a. dfeel score = 1
b. dfeel score = 4
c. dfeel score = 7
2 Question:
Different color gum drops are placed into a large black jar and passed around the room. There are 27 pink gum drops, 19 orange gum drops, 12 black gum drops, and 4 purple gum drops. You are the first to pick a gum drop from the jar.
A. What is the probability of drawing:
- Orange?
- Pink?
- Black?
- Green?
- Purple?
- Purple or pink?
- Orange or purple?
- Purple and then black? (You drop the first one on the floor, throw it in the trash, and then pick another one before handing the jar to the next person.)
B. Provide a real life example for when you might want to calculate probabilities. Explain why and how you would use this procedure.
Deliverable: Word Document
