I think it is not that they are asked to complete the hypothesis testing, but that they just need it as the fish needs the water. Hypothesis testing is considered to be an inevitable part of statistics, and it should be! This procedure in its core evaluates various sole and unique statements about the society and determine facts, which are supported by data they collected. So, should somebody state, that a fact or finding is statistically correct, it is due to the Hypothesis test.
The method is that good; it is used in a vast variety of disciplines and spheres. Nowadays practically every examination of statistical evidence, claim or hypothesis about the entire population, is being done via Hypothesis testing method.
Here, at StudentShare, there are plenty of papers on the topic. This should lead you to the understanding of the topic’s popularity among modern students. Probably each person, who is studying Sociology or any other Subject related to Statistics, has a decent knowledge of the Hypothesis testing Method and uses it to complete their assignments. Thus, if you want to know more about the method, please look through the following documents (I, personally find them to be clear and easy to understand):
If you need more information, feel free to use the search over the website, it contains plenty of essays, research papers, and assignments on the topic.