Expedia Would Like to Test the Hypothesis That the Proportion

question 130

Multiple Choice

Expedia would like to test the hypothesis that the proportion of Southwest Airline flights that arrive on- time is less than 0.90. A random sample of 140 United Airline flights found that 119 arrived on- time. Expedia would like to set α = 0.05. The critical value for this hypothesis test would be
-------.

• A)2.33
• B)1.645
• C)2.05
• D)1.28

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Definitions:

Electroconvulsive Therapy (ECT)

Form of biomedical therapy to treat severe depression in which electrodes are placed on either one or both sides of a person’s head and an electric current is passed through the electrodes that is strong enough to cause a seizure or convulsion.

Schizophrenia

A long-term mental disorder involving a breakdown in the relation between thought, emotion, and behavior, leading to faulty perception, inappropriate actions and feelings, withdrawal from reality and personal relationships into fantasy and delusion, and a sense of mental fragmentation.

Eye-Movement Desensitization Reprocessing

A psychotherapy treatment designed to alleviate the distress associated with traumatic memories, emphasizing rhythmic eye movements.

Post-Traumatic Stress Disorder

A mental health condition triggered by experiencing or witnessing a terrifying event, leading to symptoms such as flashbacks, nightmares, and severe anxiety.