You wish to determine if there is a linear correlation between the two variables at a significance level of .
You have the following bivariate data set.
What is the correlation coefficient for this data set?
r =
To find the p-value for a correlation coefficient, you need to convert to a t-score:
This t-score is from a t-distribution with n–2 degrees of freedom.
What is the p-value for this correlation coefficient?
p-value =
Your final conclusion is that...
Note: In your calculations, round both r and t to 3 decimal places in ALL calculations.
x | y |
---|---|
64.5 | -8.3 |
57.3 | 48.3 |
69.5 | -13.3 |
72.3 | 11.1 |
57.7 | 45.5 |
73.7 | 43.2 |
70.3 | 66.2 |
67.7 | 18.9 |
82.4 | 12.7 |
79.1 | 49.2 |
73.5 | 35.3 |
72.4 | -13.9 |
44.4 | 93.7 |
51.1 | 73.4 |
What is the correlation coefficient for this data set?
r =
To find the p-value for a correlation coefficient, you need to convert to a t-score:
What is the p-value for this correlation coefficient?
p-value =
Your final conclusion is that...
Note: In your calculations, round both r and t to 3 decimal places in ALL calculations.