In a Random Sample of 651 Computer Scientists Who Subscribed

question 110

Multiple Choice

In a random sample of 651 computer scientists who subscribed to a web-based daily news update,it was found that the average salary was $46,816 with a standard deviation of $12,557.A 91% confidence interval for the mean salary of computer scientists would be _____.

• A)[$25,469 $68,163]
• B)[$46,592 $47,040]
• C)[$46,157 $47,475]
• D)[$46,783 $46,849]
• E)[$45,979 $47,653]

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Definitions:

AV Valve

Short for atrioventricular valve, it relates to the valves between the atria and ventricles of the heart that prevent backflow of blood.

Pulmonary Semilunar Valve

A heart valve that is a semilunar valve. It is situated between the right ventricle and the pulmonary trunk.

Right Ventricle

The lower right chamber of the heart that receives deoxygenated blood from the right atrium and pumps it into the lungs via the pulmonary artery.

Pulmonary Semilunar Valve

A valve in the heart located between the right ventricle and the pulmonary artery, preventing backflow of blood into the heart.