Suppose You Are Testing the Null Hypothesis That a Population

question 65

Multiple Choice

Suppose you are testing the null hypothesis that a population mean is less than or equal to 80, against the alternative hypothesis that the population mean is greater than 80.If the sample size is 49 and alpha = .10, the critical value of z is ___.

• A)1.645
• B)-1.645
• C)1.28
• D)-1.28
• E)2.33

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Definitions:

Eclectic

An approach that combines elements from various theories, methodologies, or philosophies to form a comprehensive and cohesive framework.

Psychotherapy

A therapeutic treatment involving psychological methods, particularly when based on regular personal interaction, to help a person change behavior and overcome problems in desired ways.

Biological Perspective

An approach in psychology that examines thoughts, feelings, and behaviors from a biological standpoint, focusing on genetics, neuroscience, and evolutionary insights.

Self-Help Group

A voluntary association of individuals who share a common desire to overcome personal problems or improve their life situation through mutual support.