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

question 103

Multiple Choice

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,state the test statistic for determining if the population variances differ for preservatives A and B.

• A)= -3.10
• B)= 0.8250
• C)= 0.5908
• D)= 0.7687

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Definitions:

Safety

The state of being safeguarded against or not likely to experience harm, danger, or damage.

Power

The ability or capacity to influence the behavior of others or the course of events, often through authority, control, or persuasion.

Persuasive Message

A message designed to convince or influence the audience to adopt a certain viewpoint or take a specific action.

Diverse Audience

A group of individuals with varied backgrounds, cultures, ages, and interests to whom communication or content is directed.