A Researcher Wants to Estimate the Proportion of Manufacturing Companies

question 73

Multiple Choice

A researcher wants to estimate the proportion of manufacturing companies that use the Six Sigma method. For this purpose, she will take a random sample of 50 manufacturing companies and find out how many of them use this method. She estimates that the proportion will be anywhere from 0.4 to 0.55. Of all these proportions, which one would produce the widest 95% confidence interval for the population proportion?

• A) 0.4
• B) 0.45
• C) 0.5
• D) 0.55
• E) 0.6

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Definitions:

Virtues List

A compilation of moral and ethical qualities considered as positive traits and admired in a person.

Justice

The fair and equitable treatment of individuals, ensuring that rights are upheld and that decisions are made according to the rule of law and ethical standards.

Wisdom

The quality of having experience, knowledge, and good judgment.

Class Bias

A tendency to prejudice or differentiate treatment based on social class or economic status.