Suppose That the Mean Income of People in a Region

question 10

Essay

Suppose that the mean income of people in a region is $35,000 with a standard deviation of $6000. It is known that the population is unimodal and symmetric. For a sample of size 25,
a. Describe the sampling distribution for the sample.
b. What is the probability of obtaining from a sample of 25 people an average income that is above $37,000?

---

Definitions:

Personal Fable

A manifestation of adolescent egocentrism in which adolescents believe their thoughts, feelings, and experiences are more special and unique than anyone else’s, as well as the sense that they are invulnerable.

Imaginary Audience

A manifestation of adolescent egocentrism in which they assume that they are the focus of others’ attention.

Social Referencing

Seeking information from caregivers about how to interpret unfamiliar or ambiguous events by observing their emotional expressions and reactions.

Operational Reasoning

The stage of cognitive development, as identified by Piaget, in which children develop the ability to think logically about abstract concepts and concrete events.