A Sample of 12 Measurements Has a Mean of 25

question 9

Essay

A sample of 12 measurements has a mean of 25 and a standard deviation of 4. Suppose that the sample is enlarged to 14 measurements, by including two additional measurements having a common value of 25.
a. Find the mean of the sample of 14 measurements.
b. Find the standard deviation of the sample of 14 measurements.

---

Definitions:

Social-Cognitive

A theory in psychology that centers on how people learn by observing others and the role of cognitive processes in social behavior.

Global

Refers to something worldwide in scope or application.

Internal

Located or occurring within an organism or one of its parts.

Norepinephrine

A neurotransmitter and hormone involved in arousal, alertness, and regulation of blood pressure, among other physiological processes.