We Draw a Random Sample of Size 25 from the Normal

question 55

Multiple Choice

We draw a random sample of size 25 from the normal population with the variance 2.4.If the sample mean is 12.5,what is a 99% confidence interval for the population mean?

• A)[11.2600,13.7400]
• B)[11.3835,13.6165]
• C)[11.7019,13.2981]
• D)[11.7793,13.2207]

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Definitions:

Corporations

Legal entities that are separate from their owners, providing limited liability to its shareholders and having the capacity to enter contracts, sue, and be sued.

Independent Expenditure

Money spent by individuals or groups to support or oppose political candidates or issues, without coordinating directly with candidates or their campaigns.

Benefit Corporations

A type of for-profit corporate entity, which includes positive impact on society, workers, the community, and the environment in addition to profit as its legally defined goals.

Profitable

A financial state where revenues exceed expenses, generating a positive financial gain from business operations.