Final Answer:
A(n) D. Hypothesis is a prediction stated in a way that permits it to be tested.
Step-by-step explanation:
A hypothesis (d) is a prediction stated in a way that permits it to be tested. In scientific research, a hypothesis serves as a specific and testable proposition that can be evaluated through experimentation or observation. It is a crucial element in the scientific method, allowing researchers to systematically investigate and draw conclusions based on empirical evidence.
The process of forming a hypothesis involves careful consideration of existing knowledge, observations, and theoretical frameworks. It is a statement that proposes a relationship between variables and is formulated with precision to guide the research process. A well-constructed hypothesis is falsifiable, meaning it can be proven false through experimentation or observation, making it a robust tool for scientific inquiry.
For example, if researchers are exploring the effect of a new drug on blood pressure, a hypothesis could be formulated as follows: "H₀: The administration of the new drug does not significantly alter blood pressure." Here, H₀ represents the null hypothesis, suggesting no effect. Through experimentation and statistical analysis, researchers can either reject or fail to reject the null hypothesis, providing valuable insights into the drug's impact on blood pressure.
In summary, a hypothesis is a foundational element in scientific investigation, allowing researchers to make predictions that are subject to empirical testing. Its formulation and testing contribute to the advancement of scientific knowledge and the understanding of various phenomena.