Students in an Introductory College Economics Class Were Asked How

question 74

Multiple Choice

Students in an introductory college economics class were asked how many credits they had earned in college,and how certain they were about their choice of major.Their replies are summarized below. Which statement is most nearly correct?

• A)The contingency table violates Cochran's Rule.
• B)Visual inspection of column frequencies suggests independence.
• C)At α = .05 we would easily reject the null hypothesis of independence.
• D)At α = .05 we cannot reject he null hypothesis of independence.

---

Definitions:

Hypertension

Form of cardiovascular disease characterized by blood pressure over 140/95 (over 45 years of age) or 130/90 (under 45 years of age).

Silent Killer

A term often used for a disease or condition that progresses without obvious symptoms until significant damage has occurred, such as hypertension.

Stroke

A medical condition occurring when the blood supply to part of the brain is interrupted or reduced, leading to brain damage and loss of function.

Stem Cells

Undifferentiated biological cells that can differentiate into specialized cells and can divide to produce more stem cells.