A Hypothesis Test with a Sample of N = 25

question 11

Multiple Choice

A hypothesis test with a sample of n = 25 participants produces a t statistic of t = +2.53.Assuming a one-tailed test with the critical region in the right-hand tail,what is the correct decision?​

• A)​The researcher can reject the null hypothesis with α = .05 but not with α = .01.
• B)​The researcher can reject the null hypothesis with either α = .05 or α = .01.
• C)​The researcher must fail to reject the null hypothesis with either α = .05 or α = .01.
• D)​It is impossible to make a decision about H₀ without more information.

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Definitions:

Psychiatric Assessment

A comprehensive evaluation of a person’s mental health, involving the examination of a person's psychological, biological, and social factors.

Facial Expressions

External manifestations of emotions or feelings which can be observed on a person's face.

Mood Depressed

A persistent feeling of sadness or a lack of interest, which can affect thoughts, behavior, feelings, and a sense of well-being.

Psychomotor Retardation

A slowing down of thought and physical movements, common in severe depression and other psychiatric disorders.