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

question 194

Essay

TABLE 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.
Preservative I Preservative II
I = 106.4 hours II = 96.54 hours
SI = 10.3 hours SII = 13.4 hours
-Referring to Table 10-14, what is the largest level of significance at which a test of whether the population variances differ for preservatives I and II will not be rejected?

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Definitions:

Linear Perspective

A depth cue that results from the fact that parallel lines appear to converge as they recede into the distance.

Relative Luminance

A measure of the amount of light that is reflected from, or emitted by, a surface, normalized to a scale from 0 to 1, based on human visual sensitivity.

Size Constancy

Size constancy is a perceptual phenomenon where the perceived size of an object remains constant despite changes in the distance or size of the image it projects on the retina.

Perceptual Adaptation

Perceptual adaptation refers to the ability of the human brain to adjust to changes in sensory input, allowing for normal perception in spite of alterations or impairments.