A Researcher Obtains Z = 1

question 43

Multiple Choice

A researcher obtains z = 1.80 for a one-sample z test.What is the decision for this test at a .05 level of significance?

• A) to reject the null hypothesis
• B) to retain the null hypothesis
• C) it depends on whether the test is one-tailed or two-tailed

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Definitions:

Bipolar Disorder

A condition of mental health defined by significant variations in emotional state, encompassing highs (mania or hypomania) and lows (depression).

Schizophrenia

A severe mental disorder characterized by distortions in thinking, perception, emotions, language, sense of self, and behavior.

Hallucinations

Perceptions in the absence of external stimuli, such as seeing or hearing things that aren't there.

Delusions

False beliefs strongly held in spite of invalidating evidence, often as a symptom of mental illness.