A Professor Wants to Determine If the Grades in Her

question 30

Multiple Choice

A professor wants to determine if the grades in her introductory criminal justice class were higher than the rest of the school. With a total of 101 students in her class, they had a mean exam grade of 87, and a standard deviation of 3. She was not able to obtain the standard deviation for the other introductory classes, but the mean grade of all classes was 74. Which of the following would be the test statistic used, and what is the correct answer?

• A) t = 0.39
• B) t = 0.43
• C) Z = 0.39
• D) Z = 0.43

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Definitions:

Sentence Transitions

Words or phrases used to link sentences and paragraphs together smoothly, ensuring coherence in writing.

Connecting Network

A system or infrastructure that links different entities for communication or data exchange.

Readability

The measure of how easy it is to read and understand a text, influenced by factors such as language, structure, and layout.

Evaluating

The process of assessing or judging the value, performance, or nature of something.