*
* Example 4.2 from pp 124-125
*
open data meap93.raw
data(format=free,org=columns) 1 408 lnchprg enroll staff expend salary benefits droprate gradrate $
 math10 sci11 totcomp ltotcomp lexpend lenroll lstaff bensal lsalary
*
linreg math10
# constant totcomp staff enroll
*
* Again, divide the cited significance level by two to convert to a one-tailed
* test; that converts 0.35920066 to roughly .18
*
* Although the logged data are provided on the data set, this shows how to create
* them if you only have data on levels.
*
set ltotcomp = log(totcomp)
set lstaff   = log(staff)
set lenroll  = log(enroll)
*
linreg math10
# constant ltotcomp lstaff lenroll