The alternative hypothesis expression in its symbolic form is H1: u1 < u2.
The alternative hypothesis is often denoted with the code Ha or H1. One can also use the symbols or less than, greater than, etc. ( e.g. ≠, >, or <).
Note that in this case, If the professor reject the null hypothesis, then one can say that there was no enough evidence to support the claim of the alternative hypothesis. But this do not state that a claim is seen as true or false.
See options below
A) H1: μ1 = μ2
B) H1: μ1 # μ2
C) H1: μ1 < μ2
D) H1: μ1 > μ2
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