The Next Questions Are Based on the Following Information

question 151

Multiple Choice

The Next Questions Are Based On The Following Information:
The U.S.Postal Service advertises that at least 63.4% of all third class mail is read by the recipients.An environmental group,concerned about waste production wants to test this assertion.They take a sample of 220 households and find that only 58.7% read their third class mail.
-Which of the following statements is most accurate?

• A)Reject the null hypothesis at α = 0.10.
• B)Fail to reject the null hypothesis at α ≤ 0.10.
• C)Reject the null hypothesis at α = 0.05.
• D)Reject the null hypothesis at α = 0.01.

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Definitions:

Simple Random Sample

A segment of a statistical population where all individuals have the same likelihood of being selected.

Hypothesis Testing

A method of statistical inference used to decide whether there is enough evidence in a sample of data to support a particular belief or hypothesis about a population.

Tentative Beliefs

Preliminary conclusions or hypotheses that are subject to validation or revision based on further evidence or analysis.

Null Hypothesis

The presumption that there is no significant difference or effect, often used as a default hypothesis in statistical testing that the experiment aims to reject.