Hi,   I am currently trying to have SAS output a p value for the parameter estimates of my model. I am currently trying to use an exponential decay curve. I have used the following inputs to have everything I need except the p values for the parameter estimates. Any helpful advice in the right direction would be great!   Thank you!   data tmaga;             input time sa; infile datalines dlm='09'x;             cards;   0          84.46011014 0          84.70962302 0          80.96692981 0          82.96303286 1          95.06440758 1          93.69208673 1          85.20864879 1          76.97472372 1.5       59.88309139 1.5       64.62383612 1.5       68.61604221 1.5       55.14234665 2          82.4640071 2          68.61604221 2          67.74274713 2          57.88698834 3          94.19111249 3          75.72715932 3          78.97082677 3          77.34899304 4          78.47180101 4          55.01759021 4          54.89283377 4          83.96108438 5          61.13065579 5          45.91037006 5          43.29048482 5          54.01953869 ; run;   PROC NLIN Data=tmaga; PARMS a=89 b=1; MODEL sa = a*exp(-time/10)*b; output out=modeltmaga predicted=sapred r=saresid; run;   proc sort data=modeltmaga; by time; run;   proc sgplot data=modeltmaga; scatter x=time y=sa; series x=time y=sapred; run;   Proc corr data=modeltmaga;     var time sapred;   proc summary data=modeltmaga;      var saresid sa;      output out=stats css(sa)=Total_SS uss(saresid)=Residual_SS; run;   data modeltmaga;      set stats;      Rsqaured=1-(Residual_SS/Total_SS); run;   proc print data=modeltmaga; run;         ... View more