Five observations taken for two variables follow. xi 3 5 12 4 15 yi 40 40 40 50 20 c. Compute the sample covariance (to 1 decimal and enter negative value as negative figure). Interpret the sample covariance. -the postive value of the sample convariance indicate postive linear relationship -the postive value of the sample convariance indicate negative linear relationship -the negative value of the sample convariance indicate negative linear relationship - the negative value of sample convariance a postive linear relationship -there is neither a postive nor a negative linear relationship d. Compute the sample correlation coefficient (to 3 decimals and enter negative value as negative figure). Interpret the sample correlation coefficient. Hint: If the correlation coefficient is greater than 0.80 or less than -0.80, there is a strong relationship. -there is a strong postive linear relationship -there is a moderate postive linear relationship -there is neither a postive nor a negative relationship there is a strong negative linear relationship -there is a moderate negative linear relationship
Five observations taken for two variables follow.
| xi | 3 | 5 | 12 | 4 | 15 |
| yi | 40 | 40 | 40 | 50 | 20 |
c. Compute the sample
Interpret the sample covariance.
-the postive value of the sample convariance indicate postive linear relationship
-the postive value of the sample convariance indicate negative linear relationship
-the negative value of the sample convariance indicate negative linear relationship
- the negative value of sample convariance a postive linear relationship
-there is neither a postive nor a negative linear relationship
d. Compute the sample
Interpret the sample correlation coefficient. Hint: If the correlation coefficient is greater than 0.80 or less than -0.80, there is a strong relationship.
-there is a strong postive linear relationship
-there is a moderate postive linear relationship
-there is neither a postive nor a negative relationship
there is a strong negative linear relationship
-there is a moderate negative linear relationship
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