Final answer:
The alternate hypothesis is also known as the research hypothesis in hypothesis testing.
Step-by-step explanation:
The correct answer is D) Research hypothesis.
The alternate hypothesis, also known as the research hypothesis, is the hypothesis that is opposite to the null hypothesis. It represents the claim or theory that the researcher wants to prove or support with evidence.
It is written as Ha (alternative hypothesis) and is used in hypothesis testing to determine the likelihood of rejecting the null hypothesis in favor of the alternate hypothesis.