You Want to Estimateσ for the Population of Waiting Times $\sigma$

question 40

Essay

You want to estimateσ for the population of waiting times at McDonald's drive-up windows, and you want to
be 95% confident that the sample standard deviation is with 20% of $\sigma$ Find the minimum sample size. Is this
sample size practical?

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Definitions:

Recognize Melodies

The cognitive process of identifying and understanding musical tunes, which is often linked to the brain's auditory cortex and memory systems.

A1 Area

The primary auditory cortex located in the temporal lobe of the brain, responsible for processing sounds and auditory information.

Auditory Cortex

The part of the cerebral cortex that processes auditory information, located in the temporal lobes.

Simple Tones

Pure sounds that consist of a single frequency, unlike complex sounds that contain multiple frequencies.