Question

Correlations

1. A correlation is a:

2. A perfect positive correlation of +1.00 means that:

3. A correlation of .00 means that:

4. A correlation of -1.00 means that:

5. The frequencies on a communication task are listed below. The hypothesis being tested is also provided. Fill out the chart below and follow the 12 steps on page 348 to compute the correlation coefficient (r), test r against its critical value at the .05 significance level, answer the hypothesis, and interpret your findings.

H_alt:      When people are giving directions, the number of hand movements will be positively correlated to the number of facial expressions.

ID	Column 1 # of Changes in	Column 2 # of Changes in	Column 3	Column 4	Column 5
Number	Hand Movements	Facial Expressions
1	2	2
2	1	9
3	5	8
4	2	5
5	1	4
6	8	6
7	3	6
8	7	9
9	7	8
10	5	8
11	2	6
12	14	11

1. Step 6:
2. Step 7:
3. Step 8:
4. r =
5. df =
6. Critical r =
7. Interpretation:

Answer 1