Which value in ttest procedure tells you that the means are statistically different

[sasgyro]

when running a ttest on the same variable of two different datasets, what value in the result of PROC TTEST function gives the p value that confirms the means are statistically different or random? IM not familiar with the notation

[ballardw]

You would be looking for the Pr > |t|  (probability of getting a larger T statistic) column is the p-value.

The ROW depends on whether you have equal or unequal variances

Several of the SAS output table will reflect different test statistics so the Pr>T,  Pr> F ( a larger F statistic) depending on the proc and options used.

[Reeza]

Here's an annotated output walk through of the PROC TTEST output.
https://stats.idre.ucla.edu/sas/output/proc-ttest/