A Researcher Wants to Estimate the Mean Cholesterol Level of People

question 29

Multiple Choice

A researcher wants to estimate the mean cholesterol level of people in his city.A random sample of 210 people yields a mean cholesterol level of 224 and a standard deviation of 18.Construct a 95% confidence interval for the mean cholesterol level.

• A)(219.69,228.30)
• B)(219.59,228.40)
• C)(218.53,229.46)
• D)(214.96,233.03)
• E)(221.57,226.43)

---

Definitions:

Hypnotized

The condition of being in a state of hypnosis, often characterized by increased responsiveness to suggestions.

Childhood

The period in human development from infancy to puberty, characterized by growth, learning, and play.

Hypnosis

A trance-like state of heightened suggestibility, deep relaxation, and focused attention.

Black and White Drawings

Visual artworks created using only black and white colors or shades, focusing on contrasts, shapes, and textures.