Exhibit 18-2 Students in Statistics Classes Were Asked Whether They Preferred a Preferred

question 28

Multiple Choice

Exhibit 18-2
Students in statistics classes were asked whether they preferred a 10-minute break or to get out of class 10 minutes early. In a sample of 150 students, 40 preferred a 10-minute break, 80 preferred to get out 10 minutes early, and 30 had no preference. We want to determine if there is a difference in students' preferences.
-Refer to Exhibit 18-2. The test statistic based on the number of students who preferred to get out early equals

• A)-3.65
• B)0.67
• C)0.82
• D)3.65

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Definitions:

Compliance

Change in volume (e.g., in lungs or blood vessels) caused by a given change in pressure.

Pulmonary Edema

An accumulation of fluid in the lungs' air sacs, leading to impaired gas exchange and potentially causing difficulty breathing.

Respiratory Membrane

The respiratory membrane is the thin barrier in the lungs where gas exchange occurs, allowing oxygen to enter the blood and carbon dioxide to be expelled.

Diffusion Coefficient

Measure of how easily a gas diffuses through a liquid or tissue.