<p>Oh sorry, I misread. SALLY found them significant while Betty did not. In fact, the only one that is significant for a 2-tailed test at a = 0.05 is -1.980. If Betty used a right-tailed test, the significant p-values would all be the areas beyond z scores of 1.64 or greater, and
-1.980 is clearly not in the rejection region for this.</p>