A Random Sample of 25 Observations Is Selected from a Normally

question 32

Multiple Choice

A random sample of 25 observations is selected from a normally distributed population.The sample variance is 10.In the 95% confidence interval for the population variance,the upper limit is:

• A)19.353
• B)17.331
• C)17.110
• D)6.097

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Definitions:

Superior Vena Cava

Large but short vein that carries deoxygenated blood from the upper half of the body to the heart’s right atrium.

Inferior Vena Cava

A large vein that carries deoxygenated blood from the lower and middle body into the heart's right atrium.

Jugular

Relating to the neck or throat, especially with reference to veins that carry blood back to the heart.

Premature Ventricular Contractions (PVCs)

Extra, abnormal heartbeats originating from the ventricles of the heart, which can cause the sensation of a skipped beat or palpitations.