A Test of Sobriety Involves Measuring the Subject's Motor Skills

question 83

Multiple Choice

A test of sobriety involves measuring the subject's motor skills.Twenty randomly selected sober subjects take the test and produce a mean score of 41.0 with a standard deviation of 3.4.At a significance level of 0.01,test the claim that the true mean score for all sober subjects is equal to 39.0.

• A)Reject the null hypothesis of μ = 39.0 with a P-value of 0.00823.There is strong evidence that the true mean score for sober subjects is not 39.0.
• B)Reject the null hypothesis of μ = 39.0 with a P-value of 0.01647.There is sufficient evidence that the true mean score for sober subjects is different from 39.0.
• C)Fail to reject the null hypothesis of μ = 39.0 with a P-value of 0.01647.There is not sufficient evidence that the true mean score for sober subjects is different from 39.0.
• D)Fail to reject the null hypothesis of μ = 39.0 with a P-value of 0.02647.There is not sufficient evidence that the true mean score for sober subjects is different from 39.0.
• E)There is not enough information to perform the test.

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Definitions:

Psychological Techniques

Methods or strategies used in psychology to understand, diagnose, and treat mental health issues or to study behavior and mental processes.

Psychotherapy

A treatment method for mental health conditions that involves talking with a mental health professional to understand and resolve problematic behaviors, beliefs, feelings, and relationship issues.

Psychological Disorder

A syndrome marked by a clinically significant disturbance in an individual’s cognition, emotion regulation, or behavior.

Insight Therapy

A form of psychotherapy that aims to increase a patient's awareness of underlying motives and defenses through discussion and interpretation.