Exhibit 20

Multiple Choice

Exhibit 20.9.A shipping company believes there is a linear association between the weight of packages shipped and the cost.The following table shows the weight (in pounds) and cost (in dollars) of the last 7 packages shipped. Refer to Exhibit 20.9.Using the critical value approach,the appropriate conclusion is:

A) Do not reject the null hypothesis,conclude weight and cost are correlated
B) Do not reject the null hypothesis,cannot conclude the is different from zero
C) Reject the null hypothesis,cannot conclude the correlation coefficient is different from zero
D) Reject the null hypothesis,conclude weight and cost are correlated