A Local Health Center Noted That in a Sample of 400

question 45

Short Answer

A local health center noted that in a sample of 400 patients 80 were referred to them by the local hospital.
a.Provide a 95% confidence interval for all the patients who are referred to the health center by the hospital.
b.What size sample would be required to estimate the proportion of hospital referrals with a margin of error of 0.04 or less at 95% confidence?

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Definitions:

Secondary Drug Effects

Unintended effects of medication that occur in addition to the desired therapeutic effects, which may be beneficial, neutral, or harmful.

Independent Variable

In a study, the variable that is altered or controlled by the scientist to examine its impact on the dependent variable.

Experimenter Bias

A process where the scientists performing the research influence the results, consciously or unconsciously, in a way that introduces errors or specific outcomes.

Placebo Effect

The phenomenon in which a person experiences a physiological or psychological improvement after being treated with an inert or ineffective substance or intervention.