Four research participants take a test of mannual dexterity (high scores mean better dexterity) and anxiety test (high scores mean more anxiety). Scores are as follows:

Person dexterity anxiety

1 1 10

2 1 8

3 2 4

4 4 -2

a) Make a scatter diagram of the scores

b) Describe in words the general pattern of correlation, if any;

c) Figure the correlation coefficient

d) Figure weather the correlation is statistically significant (use the .05 significance level, two-tailed)

e) Explain the lodgic of what you have done, writing as if you are speaking to someone who has never heard of correlation.

f) Give 3 logically possible directions of causality.