The Results of a Recent Poll on the Preference of Shoppers

question 16

Multiple Choice

The results of a recent poll on the preference of shoppers regarding two products are shown below. $$\begin{array} { l l l } \text { Product } & \text { Shoppers Surveyed } & \text { Shoppers Favoring } \\& & \text { This Product } \\\text { A } & 800 & 560 \\\text { B } &900 & 612\end{array}$$
The standard error of $\bar { p } _ { 1 }$ - $\bar { p } _ { 2 }$ is

• A) .025.
• B) .044.
• C) .0225.
• D) .68.

---

Definitions:

Reality Principle

A psychoanalytic concept referring to the capacity of the mind to assess the external world and act upon it appropriately, as opposed to acting on the pleasure principle.

Pleasure Principle

A psychoanalytic concept that describes people's instinctual seeking of pleasure and avoidance of pain to satisfy biological and psychological needs.

Ego

A part of the psyche that mediates between the conscious, the unconscious, and the reality by deploying defense mechanisms.

Superego

A component of Sigmund Freud's psychoanalytic theory, representing the moral conscience and the ideal self, influenced by societal and parental standards.