POLS625
Assignment
18
Correlation
Analyze the
relationship between x and y.
1. What is the null hypothesis?
2. Calculate Pearson’s correlation
coefficient (r) manually.
3. Calculate Pearson’s correlation
coefficient (r) using Excel.
4. Interpret the correlation
coefficient (r).
Strength?
Direction?
5. Find out if there is a statistically
significant relationship between x and y.
6. Replicate the results using SPSS.
|
x |
y |
|
8 |
25 |
|
9 |
37 |
|
3 |
12 |
|
5 |
32 |
|
7 |
22 |
|
8 |
31 |
|
9 |
30 |
|
10 |
30 |
|
9 |
15 |