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

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) $$\mu \leq 80$$