Question 1157102
The wording is "strong evidence of a difference" without specifying which direction. This is therefore a two way test, so the pair is = or not =.

That makes the third and fourth the hypotheses of choice.
Test stat is -3.30
p=0.0018

Normally, I require the hypotheses together to encompass everything, but this belief is not universally agreed upon.  But when Ho is equal, Ha  must be NOT EQUAL.