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Instruction 10-13 to Investigate the Efficacy of a Diet,a Random Sample of Sample

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Instruction 10-13
To investigate the efficacy of a diet,a random sample of 16 male patients is drawn from a population of adult males using the diet.The weight of each individual in the sample is taken at the start of the diet and at a medical follow-up 4 weeks later.Assuming that the population of differences in weight before versus after the diet follow a normal distribution,the t-test for related samples can be used to determine if there was a significant decrease in the mean weight during this period.Suppose the mean decrease in weights over all 16 subjects in the study is 3.0 kilograms with the standard deviation of differences computed as 6.0 kilograms.
-Referring to Instruction 10-13,the computed t statistic is ________.


Definitions:

Cognitive Therapy

A type of psychotherapy that addresses maladaptive patterns of thought to treat psychological disorders.

Client-Centered Therapy

A form of psychotherapy developed by Carl Rogers emphasizing the client's capacity for self-direction and understanding of one's own feelings.

Systematic Desensitization

A behavioral therapy technique used to reduce phobic or anxiety responses by gradually exposing the person to the feared object or situation in a controlled manner.

Humanistic Therapy

A form of psychotherapy that emphasizes personal growth and the concept of self-actualization.

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