In 2005,the Average Final Exam Score for Students in an Introductory

question 42

Multiple Choice

In 2005,the average final exam score for students in an introductory math course was 72%.Five years later,a teacher wants to perform a hypothesis test to determine whether the average score of students the course has changed from the 2005 mean of 72%.The hypotheses are:
: μ = 72%
: μ ≠ 72%
Explain the result of a Type I error.

• A)The teacher will conclude that the average final exam score in the course has decreased when in fact it is the same.
• B)The teacher will conclude that the average final exam score in the course has increased when in fact it is the same.
• C)The teacher will conclude that the average final exam score in the course is the same when in fact it is the same.
• D)The teacher will conclude that the average final exam score in the course is different when in fact it is the same.
• E)The teacher will conclude that the average final exam score in the course is the same when in fact it is different.

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