A Random Sample of 49 Statistics Examinations Was Taken

question 49

Multiple Choice

A random sample of 49 statistics examinations was taken. The average score, in the sample, was 84 with a variance of 12.25. The 95% confidence interval for the average examination score of the population of the examinations is

• A) 83.45 to 84.55.
• B) 80.07 to 87.93.
• C) 83.29 to 84.71.
• D) 80.5 to 87.5.

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Definitions:

Assyrians

An ancient Mesopotamian civilization known for its powerful empire, architectural innovations, and contributions to art and writing, flourishing mainly between the 25th and 7th centuries BCE.

Lamassu

Assyrian protective deity, often depicted as a creature with a human's head, a body of a bull or a lion, and bird's wings.

Profile View

An artistic representation showing the side view of an object, person, or scene.

Ctesiphon

An ancient city located on the Tigris River, near modern-day Baghdad, Iraq, once a major capital of the Parthian and Sassanid empires.