Do you access to the book ” Statistics- A Tool for Social Research, 10th ed. – Joseph F. Healey. ” ?
If so then this assignment is yours. I have attached the 9th edition and a pdf if it helps.
Read Healy 329-332; 342-369; 380-397; 405-430
Access the GSS2012 database here: http://gss.norc.org/get-the-data/spss You will need to download the database from the web and then open (not import) it in SPSS .
What are the three questions that scatter plots are intended to answer?
The States database mentioned in the Scatterplots exercise on p. 347 does not appear to be among the samples available to us. Please follow a similar exercise using the World database, which is available on both the samples and on the iLearn site. Use SpendEduc as the independent variable and Literacy as the dependent variable.
What is the formula for the regression line?
What is the slope (b)?
What is the Y intercept?
Using that formula, what literacy rate would you expect in a country that spent 10% of GDP on education?
What does Pearson’s r2 tell us?
Complete exercise 13.7 on page 371-2.
What is the purpose of controlling for a third variable?
What is a spurious relationship?
Solve problem 14.1 on page 398
Solve problem 14.6 on page 401.
When is partial correlation a useful technique?
When is multiple correlation a useful technique?
Carry out exercise 15.5 on page 433.
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