You Are Attempting to Estimate the Average Amount a Family

question 55

Essay

You are attempting to estimate the average amount a family spends on food during a year.In the past,the standard deviation of the amount a family has spent on food during a year has been approximately $1200.If you want to be 99% sure that you have estimated average family food expenditures within $60,how many families do you need to survey?

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Definitions:

Egocentrism

A cognitive characteristic in which an individual has difficulty seeing the world from perspectives other than their own, often observed in early childhood development.

Object Permanence

The realization that objects still exist even when they are not perceivable through sight, hearing, touch, smell, or any sensory means.

Egocentrism

A cognitive bias that causes individuals to interpret the world from their own perspective, often failing to understand that others may have different points of view.

Object Permanence

The understanding that objects continue to exist even when they cannot be seen, heard, or touched.