You Have Been Asked to Observe the Shift Supervisor at the Process

question 16

Short Answer

You have been asked to observe the shift supervisor at the process test plant for Hudson Chemical Co.to estimate the proportion of time she spends answering questions for the operators.Your 30 observations have revealed the following:
(a)Based on the preliminary data,calculate the proportion of time she spends answering questions for the operators.
(b)Calculate the sample size needed to estimate the proportion of time she spends answering questions for the operators.Assume a 90% confidence that the results will lie within 5% of the true value.

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Definitions:

Blood Oxygen Level Dependent (BOLD)

A neuroimaging technique that measures brain activity by observing changes in blood flow.

Neocortex

The outer layer of the cortex of the brain, regarded as uniquely human.

Hippocampus

A region of the brain involved in the formation of new memories and is associated with learning and emotions.

Hypothalamus

A region of the brain beneath the thalamus, responsible for regulating many bodily functions, including hunger, thirst, emotions, and the body's circadian rhythms.