
    Term Estimate Std. Error    z Pr(>|z|)   S 2.5 % 97.5 %
 b3 = b4     2.55       1.98 1.29    0.197 2.3 -1.32   6.43

Columns: term, estimate, std.error, statistic, p.value, s.value, conf.low, conf.high 

