
 Estimate Std. Error    z Pr(>|z|) 2.5 % 97.5 % am  hp
     19.5      0.739 26.4   <0.001  18.1   21.0  0 120
     24.8      0.809 30.7   <0.001  23.2   26.4  1 120

Columns: rowid, estimate, std.error, statistic, p.value, conf.low, conf.high, am, hp, mpg 

