A New Apparatus Has Been Devised to Replace the Needle

question 46

Essay

A new apparatus has been devised to replace the needle in administering vaccines. The apparatus, which is connected to a large supply of vaccine, can be set to inject different amounts of the serum, but the variance in the amount of serum injected to a given person must not be greater than .05 to ensure proper inoculation. A random sample of 31 injections resulted in a variance of .103. Specify the rejection region for the test. Use α = .10.

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Definitions:

Ileostomy

An ileostomy is a surgical opening made in the abdomen to allow the external passageway of waste from the ileum, part of the small intestine.

Paralysis

A medical condition where a person experiences loss of muscle function in part of their body.

Incisors

The front teeth in mammals that are primarily used for cutting food.

Bicuspids

Also known as premolars, these are types of teeth located between the canines and molars, used for grinding food.