show the strength of the relationship between two variables! Remember that correlation

is not causation! In other words, a strong connection between two variables does not

mean that one caused the other. Also, since we are talking absolute values in the

formula, a (-0.75) is a better correlation than a (+0.25), because the absolute value of

(-0.75) is closer to 1.00!

•

Using the provided data set, calculate a Pearson product-moment correlation

by hand and show your work.

•

Using the table (B4) at the back of your textbook, identify whether the

Pearson value is stastically significant. You will need to determine the

degrees of freedom (n-2), and use the two-tailed test at 0.05 alpha level.

35

888

40

30

70

55

95

70

10

25

0

3.6

4.0

3.8

3.0

3.7

3.9

3.5

2.5

3.0

2.8