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The Centers for Disease Control (CDC)would Like to Test the Hypothesis

question 31

Multiple Choice

The Centers for Disease Control (CDC) would like to test the hypothesis that the proportion of obese adults in the U.S. has increased this year when compared to last year. A random sample of 125 adults this year found that 56 were obese. Last year, a random sample of 140 adults found that 42 were obese. If Population 1 is defined as this year and Population 2 is defined as last year, the 98% confidence interval for the difference in population proportions is _______.


Definitions:

Auricle

Another term for the outer part of the ear; it helps in directing sound waves into the ear canal.

Trauma

A deeply distressing or disturbing experience, which can be physical or psychological in nature.

Drainage

The removal or withdrawal of fluid, such as water or pus, from a particular area of the body, often using surgical or medical techniques.

Otitis Media

An infection of the middle ear, characterized by the accumulation of fluid and often causing ear pain and fevers, particularly common in children.

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