Question

Consider the following sample data: x 13 3 5 15 6 y 389 206 97 35 6 b-1. Calculate the sample covariance. (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) Sample covariance b-2. Interpret the sample covariance. The covariance indicates that x and y have a positive linear relationship. The covariance indicates that x and y have a negative linear relationship. The covariance indicates that x and y have no linear relationship. c. Calculate the sample correlation coefficient. (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) Sample correlation coefficient

Answer 1

b-1)

sample covariance =140.95

b-2)

The covariance indicates that x and y have a positive linear relationship.

c)

sample correlation coefficient=0.17