A Population Has a Standard Deviation of 25

question 60

Multiple Choice

A population has a standard deviation of 25. A random sample of 125 items from this population is selected. The sample mean is determined to be 325. At 95% confidence, the margin of error is

• A) 2.24.
• B) 5.
• C) 4.38.
• D) 11.18.

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Definitions:

Amino Acids

Organic compounds that combine to form proteins, serving as the building blocks of life and playing many critical roles in body functions.

Fatty Acids

Long hydrocarbon chains that are components of fats and oils, playing crucial roles in energy storage, cell structure, and signaling.

Peptidases

Proteins that catalyze the conversion of peptides to amino acids by cutting the bonds linking amino acids together.

Proteins

Large, complex molecules that play many critical roles in the body, including catalyzing metabolic reactions, DNA replication, and transporting molecules.