A Quality Control Engineer Wants to Determine What Is the Proportion

question 14

Essay

A quality control engineer wants to determine what is the proportion of defective parts coming off the assembly line. Past experiments, based on large sample sizes, have shown this proportion to be 0.19. What sample size does the engineer need in order to estimate, with 90% confidence, this proportion with a margin of error of 0.12? Justify your conclusion.

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Definitions:

Rural India

Areas in India that are characterized by lower population density, agricultural-based economy, and lesser access to healthcare, education, and technology compared to urban areas.

Globalization

The mechanism by which business enterprises or similar bodies start to exert influence on a global level or commence activities internationally.

Cultural Diversification

Cultural diversification is the process or state of being characterized by a variety of cultural expressions, traditions, languages, or practices within a society or among groups.

Multiculturalism

The presence of, or support for the presence of, several distinct cultural or ethnic groups within a society.