Word Problems: Correlation #6

November 3, 2008 by  
Filed under Word Prob

You notice that the entire population of Vermont seems to be influenced by what they eat. It’s a small state (only six people live in it), so you include all of them in your study. You wonder if there is a relationship between anxiety and eating carrots. Consider the following ratings (10-point scale):

Anxiety     Carrots
    10              8
      7              4
      4              9
      4              8
      9              2
      2            10

What is the sum of Anxiety: _______
What is the SS of Anxiety: _______
What is the stdev. of Anxiety: _______
What is the mean of Carrots: _______
What is the SS of Carrots: _______
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 =

What is the critical value for this statistics:
Is this statistic significant (.05 alpha, 2-tailed):

 

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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