A Study Was Recently Conducted at a Major University to Estimate

question 30

Multiple Choice

A study was recently conducted at a major university to estimate the difference in the proportion of business school and non-business school graduates who go on to a higher degree program within five years of graduation. A random sample of 400 business school graduates showed that 75 had gone to graduate school, while in a random sample of 500 non-business graduates, 137 had done so. The 95% confidence interval is

• A) -0.1412 to -0.0318.
• B) -2.0465 to 1.8375.
• C) -0.0880 to -0.0850.
• D) -0.1144 to -0.0586.
• E) -0.0873 to -0.0857.

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Definitions:

Impersonal Communication

Communication that lacks personal attribute, often characterized by a lack of emotional involvement and superficial in nature.

Impersonal Communication

Exchanges that are superficial in nature, lacking in-depth personal connection or emotional involvement between participants.

Interpersonal Communication

involves the exchange of information, feelings, and meanings between two or more people through verbal and non-verbal methods.

Ethical Communicator

Someone who is honest, clear, accurate, and considers the welfare of others when conveying messages.