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

question 9

Short Answer

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 value of the test statistic for testing if the population variances differ for preservatives I and II?

---

Definitions:

Inflation Rate

The percentage rate at which the general level of prices for goods and services is rising, and subsequently, purchasing power is falling.

Typical Family

A standard or average family unit, often used in statistical analyses to represent an average household.

Standard Of Living

The degree of wealth, comfort, material goods, and necessities available to an individual, group, or society.

Inflation Rate

The rate expressed as a percentage at which the average price level of goods and services increases, leading to a decrease in purchasing power.