Exhibit 84

question 103

Multiple Choice

Exhibit 8.4.According to a report in USA Today (February 1,2012) ,more and more parents are helping their young adult children get homes.Suppose 8 persons in a random sample of 40 young adults who recently purchased a home in Kentucky got help from their parents.You have been asked to construct a 95% confidence interval for the population proportion of all young adults in Kentucky who got help from their parents. Refer to Exhibit 8.4.If a 99% confidence interval is constructed instead of a 95% confidence interval for the population proportion,then ____________________.

• A)The resulting margin of error will increase and the risk of reporting an incorrect interval will increase
• B)The resulting margin of error will decrease and the risk of reporting an incorrect interval will increase
• C)The resulting margin of error will increase and the risk of reporting an incorrect interval will decrease
• D)The resulting margin of error will decrease and the risk of reporting an incorrect interval will decrease

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Definitions:

Cardiomyopathy

Cardiomyopathy is a group of diseases affecting the heart muscle, leading to impaired function and heart failure.

Nephrology

A branch of medicine focusing on the diagnosis and treatment of kidney diseases.

Osteoarthritis

A degenerative joint disease characterized by the breakdown of cartilage and underlying bone, resulting in pain and stiffness, primarily affecting the elderly.

Neurological

Pertaining to the nervous system and its diseases or disorders.