Instruction 10-3
the Use of Preservatives by Food Processors Has

question 5

Essay

Instruction 10-3
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 A and 15 are treated with preservative B,and the number of hours until spoilage begins is recorded for each of the 30 cuts of meat.The results are summarised in the table below.

$\begin{array} { l c } Preservative A&Preservative B\\\bar { X } _ { \mathrm { A } } = 106.4 \text { hours } & \bar { X } _ { \mathrm { B } } = 96.54 \text { hours } \\ S _ { \mathrm { A } } = 10.3 \text { hours } & S _ { \mathrm { B } } = 13.4 \text { hours } \end{array}$
-Referring to Instruction 10-3,suppose ? = 0.05.Which of the following represents the correct conclusion?
A)There is no evidence of a difference in the population variances between preservatives A and B.
B)There is evidence of a difference in the population variances between preservatives A and B.
C)There is evidence that the population variances between preservatives A and B are the same.
D)There is no evidence that the population variances between preservatives A and B are the same.

• A)There is no evidence of a difference in the population variances between preservatives A and B.
• B)There is evidence of a difference in the population variances between preservatives A and B.
• C)There is evidence that the population variances between preservatives A and B are the same.
• D)There is no evidence that the population variances between preservatives A and B are the same.

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Definitions:

Cells

The smallest living units of structure and function.

Amino Acids

Organic compounds that combine to form proteins, serving as the building blocks of life with critical roles in gene expression, enzyme function, and cellular structure.

Lipoproteins

Large molecules that are fat-soluble on the inside and water-soluble on the outside and carry lipids such as cholesterol and triglycerides through the bloodstream.

Diverticular Disease

A condition characterized by the formation of small pouches in the wall of the colon.