A Wine Manufacturer Is Concerned About the Percentage of Alcohol

question 31

Multiple Choice

A wine manufacturer is concerned about the percentage of alcohol in each bottle.A random sample of 31 bottles is tested.The average alcohol percentage is 12.58% and the standard deviation is 0.25%.If wine content is normally distributed,the 90% confidence interval for the average wine content is _____.

• A)[12.46,12.70]
• B)[12.48,12.68]
• C)[12.49,12.67]
• D)[12.50,12.66]
• E)[12.52,12.64]

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Definitions:

Macule Skin Lesion

A flat, distinct, colored area of skin less than 1 cm wide without any change in the texture or thickness of the skin.

Nonpalpable

Unable to be felt by touch, often referring to abnormalities within the body that cannot be detected through physical examination.

Keratinized Cells

Cells that have undergone keratinization, where cells fill with the protein keratin to form a tough, protective layer on the skin, hair, and nails.

Warts

Skin growths caused by human papillomavirus (HPV) infection, appearing as small cauliflower-like bumps on the skin.