申論題

8. CWD-Tel operates mobile telephone systems in a developing country. David, a manager at CWD-Tel, wants to predict the peak demand for circuits, on the basis of the number of portable phones in a region. He has obtained the following data for 20 regions:

(Thus, for example, Region 11 had 54,061 portable phones and its peak demand was 6,878 circuits.)
David used linear regression for this purpose. The resulting computer output is shown below:

(b) Interpret, in managerial terms, the meaning of each of the two regression coefficients
(including the units in which each is expressed).
Answer=__(T)__.