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A random sample of 80 companies who announced corrections to their balance sheets took a mean time of 8.1 days for the time between balance sheet construction and the complete audit.The population standard deviation is assumed to be 1.3 days.If the claim is that the population mean is greater than 7.5 days,calculate the appropriate test statistic to test the hypotheses.
Psychiatrist
A medical doctor specialized in diagnosing, treating, and preventing mental, emotional, and behavioral disorders.
Schizophrenia
A long-term mental disorder involving a breakdown in the relation between thought, emotion, and behavior, leading to faulty perception and inappropriate actions and feelings.
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Medical treatments for mental disorders that affect the brain's chemical environment, including medication and electroconvulsive therapy.
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