In 2009,the Average Final Exam Score for Students in an Introductory

question 112

Multiple Choice

In 2009,the average final exam score for students in an introductory math course was 75%.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 2009 mean of 75%.The hypotheses are: H0: μ = 75%
HA: μ ≠ 75%
Explain the result of a Type II 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 not conclude that the average final exam score in the course is different when in fact it is different.
• 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 the same.

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Definitions:

Defense Mechanism

Psychological strategies used unconsciously by individuals to protect themselves from anxiety and internal conflicts.

Displacement

In psychology, a defense mechanism where an individual redirects emotional impulses from a real object to a safer substitute target.

Sublimation

A defense mechanism where socially unacceptable impulses or idealizations are transformed into socially acceptable actions or behavior.

Denial

A psychological defense mechanism where an individual refuses to accept reality or facts, thereby avoiding facing uncomfortable emotions.