TABLE 8-10 The President of a University Is Concerned That Illicit Drug

question 72

True/False

TABLE 8-10
The president of a university is concerned that illicit drug use on campus is higher than the 5% acceptable level. A random sample of 250 students from a population of 2,000 revealed that 7 of them had used illicit drug during the last 12 months.
-Referring to Table 8-10, using the 90% one-sided confidence interval, the president can be 95% confident that no more than 5% of the students at the university had used illicit drug during the last 12 months.

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Definitions:

Intercostal Muscles

Muscles located between the ribs that aid in the process of breathing by controlling the expansion and contraction of the chest cavity.

Elevate Ribs

The action of lifting the ribs through muscle contraction, which increases the volume of the thoracic cavity to aid in inhalation.

Emphysema

A long-term, progressive disease of the lungs characterized by a loss of elasticity and enlargement of air spaces, leading to breathing difficulties.

Trachea

A large tube in the respiratory system that connects the larynx to the bronchi, allowing air passage to the lungs.