Suppose a Population Has a Mean of 870 and a Variance

question 35

Multiple Choice

Suppose a population has a mean of 870 and a variance of 1,600.If a random sample of size 64 is drawn from the population,the probability that the sample mean is between 860 and 875 is _______.

• A) 0.9544
• B) 0.6826
• C) 0.8785
• D) 0.5899
• E) 0.8185

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Definitions:

Integumentary

Pertaining to the covering of the body, including skin, hair, nails, and related glands, serving as a protective barrier.

Constrict

To narrow; to become smaller because of contraction of a sphincter muscle.

Erythema

Diffuse redness over the skin because of capillary congestion and dilation of the superficial capillaries.

Verrucae

Warts; small, circumscribed elevations of the skin formed by hypertrophy of the papillae.