An Education Expert Is Researching Teaching Methods and Wishes to Interview

question 23

Multiple Choice

An education expert is researching teaching methods and wishes to interview teachers from a particular school district. She randomly selects ten schools from the district and interviews all of the teachers at the selected schools. Does this sampling plan result in a random sample? Simple
Random sample? Explain.

• A) No; no. The sample is not random because teachers in small schools are more likely to be selected than teachers in larger schools. It is not a simple random sample because some samples are not possible, such as a sample that includes teachers from schools that were not selected.
• B) Yes; no. The sample is random because all teachers have the same chance of being selected. It is not a simple random sample because some samples are not possible, such as a sample that includes teachers from schools that were not selected.
• C) No; yes. The sample is not random because teachers in small schools are more likely to be selected than teachers in larger schools. It is a simple random sample because all samples have the same chance of being selected.
• D) Yes; yes. The sample is random because all teachers have the same chance of being selected. It is a simple random sample because all samples have the same chance of being selected.

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Definitions:

Summary Judgment

is a legal decision made by a court without a full trial, granted when there is no dispute over the material facts of the case and one party is entitled to judgement as a matter of law.

Material Fact

Any fact that could influence a decision-maker's actions or decisions, especially in legal and financial contexts.

Voir Dire

A legal procedure during jury selection where prospective jurors are questioned about their qualifications to serve on a jury.

Jury Trial

A legal proceeding in which a jury made up of citizens decides the outcome of a lawsuit or criminal case.