Dear all,
I have to create a new sample in which the difference between two variables is significant with a p-value of 0.10 (one-sided) or less.
Here you can find a small part of the sample I'm working on.

Code:
* Example generated by -dataex-. To install: ssc install dataex
clear
input str6 gvkey double fyear float(w1 w2)
"001166" 2006           0  .11279426
"001166" 2007   -1.637959 -.27963558
"001166" 2008    -.950194   .0750155
"001166" 2009   -.8942925   .4627495
"001166" 2010   -.8927091   .4618876
"001166" 2011   -.9401239   .4821147
"001166" 2012  -.24718045  1.0281346
"001166" 2013    .3438349  .58495206
"001166" 2014   .11407267  .26770407
"001166" 2015  -1.7433417  -.5185392
"001166" 2016    .2910845  .14705177
"001166" 2017   -1.207478   1.905073
"001166" 2018  -1.2699703  2.0405955
"001491" 2005   .11319265          0
"001491" 2006      1.3774  1.5326812
"001491" 2007  -.15200947  .19509214
"001491" 2008   .09235152 -.03370083
"001491" 2009    .4543725   .4367438
"001491" 2010    .1379019  .04374808
"001491" 2011    .7400544  .58201104
"001491" 2012   1.3656943   .9399076
"001491" 2013  -2.4492245 -1.6763176
"001491" 2014    .1054693    .715324
"001491" 2015   -.4048582  -.7234704
"001491" 2016  .028132726   .3532367
"001491" 2017    .6511824  .55156463
"001491" 2018   -.4640799 -.19116877
"001855" 2014           0 -.09507062
"001855" 2015    .2037961  .10750423
"001855" 2016    .2749106   .1760321
"001855" 2017     -2.6788 -2.2901726
"001855" 2018   -.6326878  -.2276851
"001932" 2005           0  2.2762423
"001932" 2006   -12.76777   7.909246
"001932" 2007   -3.578239  -.9477926
"001932" 2008   -4.451492  -.9835192
"001932" 2009   3.5502696  1.2015682
"001932" 2010    .6293077  .55401886
"001932" 2011    .7311197  .11962037
"001932" 2012    .1647793 -.50672024
"001932" 2013    .7354411 -.15725724
"001932" 2014   1.0488538   .1577161
"001932" 2015    .7123489  .24158955
"001932" 2016    5.987796   .9939422
"001932" 2017   1.6091285  -.1517841
"001932" 2018    2.899344  1.5253427
"001945" 1999           0   .9485321
"001945" 2000    1.362058  1.9056555
"001945" 2001   1.2584103  1.6815386
"001945" 2002   -.2038179   .2461232
"001945" 2003    -.793873 -.38997155
"001945" 2004  -1.1883448  -.7283143
"001945" 2005    4.886021  2.6952515
end
I would like to keep just the observations in which w1<w2 at p-value<0.10. At this purpose, I was told to keep the observations where the F-statistic on the difference between w1 and w2 is significant with a p-value of 0.10 (one-sided) or less.
How can I perform this process on my sample?
Thanks for the attention.
Kind regards,

Daniel