A Researcher Wants to Estimate the Proportion of the Manufacturing

question 42

Multiple Choice

A researcher wants to estimate the proportion of the 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 narrowest 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:

Worked

Pertains to having engaged in activities, efforts, or jobs to achieve a specific outcome or result.

Date Rape Drugs

Substances used to incapacitate individuals with the intention of committing sexual assault or rape.

Date Rapes

Sexual assaults that occur in the context of a dating relationship, where the perpetrator and the victim are acquainted.

Batterers

Individuals who engage in repeated acts of physical or emotional abuse towards their partners or family members.