Elwin Osbourne, CIO at GFS, Inc

question 68

Multiple Choice

Elwin Osbourne, CIO at GFS, Inc., is studying employee use of GFS e-mail for non-business communications.He plans to use a 95% confidence interval estimate of the proportion of e-mail messages that are non-business; he will accept a 0.05 error.Previous studies indicate that approximately 30% of employee e-mail is not business related.Elwin should sample _______ e-mail messages.

• A)323
• B)12
• C)457
• D)14
• E)100

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Definitions:

Relationship

A connection, association, or involvement between two or more individuals, groups, or entities.

Negative Correlation

A relationship between two variables in which one variable increases as the other decreases, and vice versa.

Average Income

A measure of the middle income value for individuals or households within a specific group or country.

Dental Disease

Conditions affecting the teeth, gums, and other structures of the mouth, including cavities, gum disease, and oral cancer.