Word Problems: Correlation #2

November 3, 2008 by  
Filed under Word Prob

As a researcher, you are interested in the relationship between depression and blood sugar. You have measured several patients at the local hospital on each variable, and now hope to find how related these two variables are. Consider the following data:

Depression    Blood Sugar
       7                  2
       8                  3
     11                  2
       6                  8
       7                  7
       3                12
       1                14

What is the sum of Depression: _______
What is the SS of Depression: _______
The variance of Depression: _______
What is the mean of Sugar: _______
What is the SS of Sugar: _______
Since you are interested in commonality, which of the following tests should you perform:

a. t-test
b. ANOVA
c. correlation
d. regression
e. multiple regression

Perform the comparison you selected in the item above. Select only the appropriate one(s). What was the result of your calculation?

a =

b =

r =

t =

F =

How much variance is accounted for?

 

 

Answers

 

 

 

NOW YOU CHOOSE:
   
Day 5: Correlation
    Bit More About Correlation
    Even More About Correlation
    Calculate Correlation
    Practice Problems
    More Practice Problems
    Word Problems
       
Sim1            Sim2             Sim3
        Sim4            Sim5             Sim6
        Sim7            Sim8             Sim9
    Basic Facts About Correlation
    Vocabulary
    Formulas
    Quiz 5
    Summary

 

 

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