A Population Has a Mean of 80 and a Standard

question 118

Multiple Choice

A population has a mean of 80 and a standard deviation of 7. A sample of 49 observations will be taken. The probability that the sample mean will be larger than 82 is

• A)0.5228
• B)0.9772
• C)0.4772
• D)0.0228

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Definitions:

Vena Cava

Large systemic vein that returns blood to the right atrium of the heart in tetrapods; either the superior or inferior vena cava.

Antihistamine

A type of medication that blocks histamine receptors and is used to treat allergic reactions by reducing symptoms like nasal congestion, sneezing, or itching.

Histamine

Substance, produced by basophils in blood and mast cells in connective tissue, that causes capillaries to dilate.

Capillary Dilation

The enlargement or widening of blood capillaries, which can increase blood flow and reduce blood pressure.