An Advertising Firm Wants to Confirm Estimates That 18% of Households

question 44

Multiple Choice

An advertising firm wants to confirm estimates that 18% of households will buy something on the internet next year.What sample size will produce a margin of error of 7% with 90% confidence level?

• A)116
• B)82
• C)73
• D)246
• E)6

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Definitions:

Human Communication

The process by which individuals exchange information, feelings, and meanings through verbal and non-verbal messages.

Null Hypothesis

A statistical hypothesis that assumes no significant difference or effect in a particular situation, serving as a default position until evidence suggests otherwise.

Variables

Elements or factors that can change and potentially influence the outcome of research or an experiment.

Research

The systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions.