Coleman Surveys a Random Sample of City Residents and Uses

question 9

Multiple Choice

Coleman surveys a random sample of city residents and uses a 95% confidence interval to estimate the proportion of all city residents who plan to vote in an upcoming election. Emma isn't satisfied with 95% confidence. She wants to use a 99% confidence interval, but she doesn't want it to be any wider that Coleman's 95% confidence interval. In order to achieve this, Emma must

• A) take a sufficiently larger random sample of city residents.
• B) take a sufficiently smaller random sample of city residents.
• C) reject the null hypothesis.
• D) have a sufficiently small P-value.
• E) Both reject the null hypothesis, and have a sufficiently small P-value.

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Definitions:

Black Poverty

A term referring to the disproportionately high rates of poverty among Black or African American communities.

Human Capital

The accumulation of knowledge and skills that make a worker productive.

Great Society Program

A set of domestic policy initiatives launched by President Lyndon B. Johnson aimed at eliminating poverty and racial injustice.

1960s

A decade marked by major political and social change globally, including the Civil Rights Movement in the United States, the Vietnam War, and the rise of counterculture.