For the above test the calculated value of test statistic is

For the above test, the calculated value of test statistic is:

n = 8

x = 56
y = 296
x ² = 428
y ² = 11,920
xy = 2,257

1.sample covariace?sample corellation coefficient?

2.Given the sample correlation coefficient in question above. The comment is:

There is a strong and positive relation between X & Y.

There is a strong and negative relation between X & Y.

There is a weak and positive relation between X & Y.

Not enough information to comment.

3.To test for a direct relation between X and Y, the appropriate hypothesis is:

Ho: = 0 Ha: > 0

Ho: > 0 Ha: < 0

Ho: = 0 Ha: 0

Ho: < 0 Ha: > 0

To test for a direct relation between X and Y, the appropriate hypothesis is:

Ho: = 0 Ha: > 0

Ho: > 0 Ha: < 0

Ho: = 0 Ha: 0

Ho: < 0 Ha: > 0

Solution