Question

Four research participants take a test of manual dexterity (high scores

mean better dexterity) and an anxiety test (high scores mean more anxiety). The scores are as follows:

Person                         Dexterity                      Anxiety
1                                 1                                 10
2                                 1                                   8
3                                 2                                   4
4                                 4                                  -2

1.    Create a scatter diagram of the scores.

2.    Describe in words the general pattern of correlation, if any.

3.    Figure the correlation coefficient.

4.    Explain the logic of what you have done, writing as if you are speaking to someone who has never heard of correlation (but who does understand the mean, standard deviation, Z scores, and hypothesis testing).

Explain the logic of what you have done, writing as if you are speaking to someone who has never heard of correlation (but who does understand the mean, standard deviation, Z scores, and hypothesis testing).

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