Exhibit 81

question 17

Multiple Choice

Exhibit 8.1.The ages of MBA students at a university are normally distributed with a known population variance of 10.24.Suppose you are asked to construct a 95% confidence interval for the population mean age if the mean of a sample of 36 students is 26.5 years. Refer to Exhibit 8.1.If a 99% confidence interval is constructed instead of a 95% confidence interval for the population mean,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:

Unprotected Sex

Sexual activity without the use of contraceptives or protective measures, increasing the risk of sexually transmitted infections and unintended pregnancies.

Childbirth

The process of giving birth to a baby, including labor and delivery.

Sharing Drug Needles

The unsafe practice of multiple individuals using the same needle for injecting drugs, increasing the risk of transmitting infectious diseases.

Incisional Biopsy

A surgical procedure where a small cut is made in the skin to remove a sample of tissue for examination, usually to diagnose diseases or conditions.