A Survey Reported That in a Recent Year, the Mean

question 46

Multiple Choice

A survey reported that in a recent year, the mean serum cholesterol level in milligrams per deciliter for U.S. adults was 199 with a standard deviation of 44. A random sample of 104 adults was Chosen. What is the probability that the mean cholesterol level is less than 198?

• A) 0.4920
• B) 0.5080
• C) 0.5910
• D) 0.4090

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Definitions:

Machinery

Mechanical devices or assemblies, often powered by electricity or engines, that perform specific tasks, commonly used in industries for production processes.

Petroleum

A natural, flammable liquid found in the Earth's formations, composed of a complex mixture of hydrocarbons and used primarily as fuel.

Opportunity Cost

The value of the best alternative forgone when a decision is made to pursue a particular course of action.

Machinery

Mechanical devices or equipment used in various industries to perform tasks more efficiently than manual labor.