A University Planner Is Interested in Determining the Percentage of Spring

question 136

Short Answer

A university planner is interested in determining the percentage of spring semester students who will attend summer school. She takes a pilot sample of 160 spring semester students discovering that 56 will return to summer school.
a.Construct a 95% confidence interval estimate for the percentage of spring semester students who will return to summer school.
b.Using the results of the pilot study with a 0.95 probability, how large of a sample would have to be taken to provide a margin of error of 3% or less?

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Definitions:

Source Amnesia

A memory disorder where an individual can remember information but cannot recall how or where they came to know it.

Kidnapping

The unlawful abduction and restraint of a person against their will, typically with the aim of demanding ransom or committing further crime.

Vivid

Describes bright, intense, or clear imagery or memories, often leaving a strong impression.

Memory

The cognitive process of encoding, storing, and retrieving information.