A Researcher Administers a Treatment to a Sample of Participants

question 38

Multiple Choice

A researcher administers a treatment to a sample of participants selected from a population with µ = 80.If the researcher obtains a sample mean of M = 88,given the same alpha level,which combination of factors is most likely to result in rejecting the null hypothesis?​

• A)​σ = 5 and n = 25
• B)​σ = 5 and n = 50
• C)​σ = 10 and n = 25
• D)​σ = 10 and n = 50

---

Definitions:

Learning Disorder

A neurological disorder that affects a person's ability to receive, process, analyze, or store information, potentially leading to difficulties with reading, writing, or math.

Letter Reversals

A common phenomenon in early childhood learning where letters are written backward or upside down.

Knowledge Base

An individual’s mentally stored information. Adults generally have a larger base for most domains of knowledge than children do.

Cognitive Changes

Refers to alterations in mental processes such as perception, memory, and reasoning that occur over time due to aging, development, or neurological conditions.