College Dean a College Dean Would Like to Estimate a Population

question 151

Short Answer

College Dean
A college dean would like to estimate a population mean to within 40 units with 99% confidence given that the population standard deviation is 200. ​ ​
-{College Dean Narrative} What sample size should be used if the standard deviation is changed to 50?

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Definitions:

Self-esteem Source

The origin or factors that contribute to an individual's perception of their own worth or value.

External Locus

The belief that one's fate or outcomes in life are determined by external forces or luck rather than one's own actions.

Control

The faculty to affect or guide how people act or the evolution of events.

Exam Failure

The situation in which an individual does not achieve the required or expected score on an academic or professional examination.