A Researcher Performed a Study to Determine Whether an Association

question 48

Multiple Choice

A researcher performed a study to determine whether an association exists between political party affiliation and income.She obtained the following sample data.Use a 1% level of significance.

= 27.831;P-value = 0.0000135

• A)Reject the null hypothesis.The data provide sufficient evidence to conclude that political party affiliation is distributed uniformly for each income bracket.
• B)Do not reject the null hypothesis.There is insufficient evidence to conclude that there is a relationship between income and political party affiliation.
• C)Reject the null hypothesis.The data provide sufficient evidence to conclude that there is a relationship between income and political party affiliation.
• D)Do not reject the null hypothesis.The data provide sufficient evidence to conclude that there is a relationship between income and political party affiliation.
• E)Reject the null hypothesis.There is insufficient evidence to conclude that there is a relationship between income and political party affiliation.

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Definitions:

Endorsements

Public declarations of support for a product, service, or individual, often made by a celebrity or recognized authority in a particular field.

Writer's Credibility

The level of trustworthiness, expertise, and authority attributed to an author based on their experience, qualifications, and previous work.

Credibility

The quality of being trusted and believed in, often achieved through consistency, accuracy, and reliability in one's actions or information.

Believability

The quality of being perceived as credible or trustworthy, often a crucial factor in effective communication and persuasion.