A Researcher Collects 25 Data Points That Yield a Mean

question 12

Multiple Choice

A researcher collects 25 data points that yield a mean of 8.164 and a standard deviation (based on N - 1) of 2.237.If the researcher is comparing the sample to a population mean of 9.2 using a single-sample t test, what would be the effect size?

• A) -0.60
• B) -0.46
• C) 0.46
• D) 0.68

---

Definitions:

Power

The ability or capacity to direct or influence the behavior of others or the course of events.

Greater Power

Refers to the superior ability or authority of an individual or group to influence or control outcomes in their favor.

Controlled Processing System

A cognitive system involving conscious, deliberate thought and attention for complex tasks or decisions.

Rigid

Describes something or someone that is inflexible, strict, or unable to change.