SCENARIO 10-14 the Use of Preservatives by Food Processors Has Become a Become

question 132

Multiple Choice

SCENARIO 10-14
The use of preservatives by food processors has become a controversial issue.Suppose two preservatives are extensively tested and determined safe for use in meats.A processor wants to compare the preservatives for their effects on retarding spoilage.Suppose 15 cuts of fresh meat are treated with preservative I and 15 are treated with preservative II,and the number of hours until spoilage begins is recorded for each of the 30 cuts of meat.The results are summarized in the table below.

-Referring to Scenario 10-14,what assumptions are necessary for testing if the population variances differ for preservatives I and II?

• A)Both sampled populations are normally distributed.
• B)Both samples are random and independent.
• C)Neither (a)nor (b)is necessary.
• D)Both (a)and (b)are necessary.

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Definitions:

Modeling

The act of learning by observing and imitating the behaviors of others.

Cytokine

Small proteins released by cells that have a specific effect on the interactions and communications between cells, playing a crucial role in the body's immune response.

Galactose

A simple sugar that is a component of lactose, found in milk and dairy products, and is metabolized by the body into glucose.

Lateral Hypothalamus

An area of the brain thought to control hunger and thirst; damage can reduce the desire to eat and drink.