Use the Traditional Method to Test the Given Hypothesis

question 47

Essay

Use the traditional method to test the given hypothesis. Assume that the samples are independent and that they have been randomly selected
-7 of 8,500 people vaccinated against a certain disease later developed the disease. 18 of 10,000 people vaccinated with a placebo later developed the disease. Test the claim that the vaccine is effective in lowering the incidence of the disease. Use a significance level of 0.02.

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Definitions:

Barbiturates

A class of drugs that act as central nervous system depressants and are used as sedatives, anesthetics, or anticonvulsants.

Amphetamines

A class of stimulant drugs that affect the central nervous system, often used to treat conditions like ADHD but also prone to abuse and addiction.

Alcohol Use Disorder

A health disorder marked by a lacking capacity to cease or manage alcohol consumption in spite of negative effects on social, work, or physical well-being.

Withdrawal

The process of reducing or eliminating the intake of a substance to which one has become dependent or addicted, often accompanied by physiological and psychological effects.