When testing the equality of two population variances,the test statistic is the ratio of the population variances; namely 
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Definitions:
Protein Loss
The excessive loss of protein from the body, which can occur due to various medical conditions and can lead to nutritional deficiencies and other health issues.
Chronic Renal Failure
A long-term kidney condition where the kidneys progressively lose their ability to function properly.
"Uremic" Breath
A specific type of bad breath associated with the accumulation of urea in the blood, typically indicative of kidney failure.
Renal Transplantation
A surgical procedure to replace a diseased kidney with a healthy kidney from a donor.
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