A Sampling Distribution of Means Based on All Possible Random

question 40

Multiple Choice

A sampling distribution of means based on all possible random samples of N=25,drawn from a population having a µ of 25 and a ó of 4,will have a mean of _____ and standard deviation of _____.

• A)25;4
• B)25;.8
• C)25;.16
• D)unknown;.8

---

Definitions:

Absolute Threshold

The minimum stimulus intensity required for detection by the senses.

Signal Detection

A technique used to determine the ability to differentiate between information-bearing patterns and random patterns that distract from the information.

Sensory Adaptation

Sensory adaptation is a phenomenon in which the sensitivity to a stimulus decreases over time as an organism becomes accustomed to its presence.

Just-noticeable Difference

The minimum difference in stimulus intensity required to detect a difference between two stimuli.