Exhibit 10

question 98

Multiple Choice

Exhibit 10.12.A veterinarian wants to know if pit bulls or golden retrievers have a higher incidence of tooth decay at the age of three.The vet surveys 120 three-year old pit bulls and finds 30 of them have tooth decay.The vet then surveys 160 three-year old golden retrievers and finds 32 of them have tooth decay.Number the population of pit bulls and golden retrievers by 1 and 2,respectively. Refer to Exhibit 10.12.Calculate a 90% confidence interval for the difference in the population proportion of pit bulls and golden retrievers that have tooth decay.Which of the following is correct?

• A)[-0.0492,0.1492]
• B)[-0.0332,0.1332]
• C)[0.0199.0.0801]
• D)[0.0428,0.0572]

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Definitions:

Blood Pressure

The pressure of circulating blood on the walls of blood vessels, often measured for diagnosis since it is closely related to the force and rate of the heartbeat.

Consistency

The quality of achieving a level of performance which does not vary greatly in quality over time.

Concise Language

A way of speaking or writing that is clear and brief, using the fewest words necessary without losing meaning.

Cardiovascular Killer

Diseases or conditions that affect the heart and blood vessels, leading to high mortality rates, such as heart disease or stroke.