Additives
A food processor wants to compare two additives for their effects on retarding spoilage.Suppose 16 cuts of fresh meat are treated with additive A and 16 are treated with additive B,and the number of hours until spoilage begins is recorded for each of the 32 cuts of meat.The results are summarized in the table below 
-{Additives Narrative} Assume population variances are equal.Calculate the pooled variance and the value of the test statistic.
Definitions:
HDL
High-Density Lipoprotein, often referred to as "good" cholesterol, involved in transporting cholesterol to the liver for removal from the body.
Brachial Artery
The major blood vessel of the (upper) arm that continues from the axillary artery.
Temporal
Related to time or the timing of something, or pertaining to the temples of the skull.
Radial
Pertaining to the radius bone or located near it; also refers to structures arranged like rays.
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