Catherine Chao, Director of Marketing Research, Is Evaluating Consumer Acceptance

question 93

Multiple Choice

Catherine Chao, Director of Marketing Research, is evaluating consumer acceptance of a new toothpaste package.She plans to use a 95% confidence interval estimate of the proportion of households which prefer the new packages; she will accept a 0.05 error.Previous studies indicate that new packaging has an approximately 70% acceptance rate.The sample size should be at least _______.

• A)27
• B)59
• C)323
• D)427
• E)500

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Definitions:

Representative Sample

A subset of a population carefully selected to reflect the characteristics of the larger group accurately, essential for valid and generalizable research findings.

Voluntary Response Sample

A sample which consists of individuals who choose themselves to participate in a survey, often leading to bias and unrepresentative samples.

Contingency Table

A Contingency Table is a statistical tool used to analyze the relationship between two or more variables, presenting the frequency distribution in a matrix format.

Response Rate

The percentage of people who respond to a certain call-to-action out of the total number of people who were asked to take the action.