Homework; Introductory Econometrics curse

-It is economic homework.
– it is for Introductory Econometrics curse.
– software source:
Double click on the software to open a box.
– it is about calculate, table gives data on indexes of output per hour (X and real compensation per hour Y) for the businesse and non farm business sector of US economy for 1959-1997. The back year of the indexes is 1982 = 100 and the indexes are seasonally adjusted.
The Question will provide it by downloaded to next process.
It is: 3.20 the last one above the table
– I do want any references