A Researcher Is Conducting an Experiment to Evaluate a Treatment

question 19

Multiple Choice

A researcher is conducting an experiment to evaluate a treatment that is expected to increase the scores for individuals in a population that is known to have a mean of μ = 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)μ > 40
• B)μ > 120
• C)μ < 85
• D)μ < 80

---

Definitions:

Unsanitary Conditions

Poor or inadequate cleanliness practices that increase the risk of spreading diseases or infections, particularly in populated areas or communities.

Horizontal Gene Transfer

The exchange of genetic information between single-celled and/or multi-celled organisms that occurs via routes excluding the direct descent of DNA from parents to their progeny.

Antibiotic Resistance

The ability of bacteria to develop resistance to antibiotics, making them harder to eliminate and treat.

Bacteria

Single-celled microorganisms that come in various shapes and can inhabit a wide range of environments, including extreme conditions.