A Researcher Is Conducting an Experiment to Evaluate a Treatment $$\mu > 80$$

question 49

Multiple Choice

a researcher is conducting an experiment to evaluate a treatment that is expected to increase the scores for individuals in a population which is known to have a mean of ? = 80.The results will be examined using a one-tailed hypothesis test.Which of the following is the correct statement of the null hypothesis??

• A) \[\mu > 80\]
• B)\[\mu \geq 80\]
• C) \[\mu < 80\]
• D)\[\mu \leq 80\]

---

Definitions:

Guarantee

A formal assurance or promise, often in writing, that certain conditions will be fulfilled, including the quality or durability of a product or the completion of an obligation.

Implied Warranty

An unwritten and unspoken guarantee that a product or service will meet a minimum standard of quality and functionality.

Inference

The process of reasoning and drawing conclusions based on the evidence or premises provided.

Transaction

The act of conducting business, typically involving the exchange of goods, services, or funds between parties.