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The manager of a local specialty store is concerned with a possible slowdown in payments by her customers.She measures the rate of payment in terms of the average number of days receivables are outstanding.Generally,the store has maintained an average of 50 days with a standard deviation of 10 days.A random sample of 25 accounts gives an average of 54 days outstanding with a standard deviation of 8 days.Determine the critical value for α = .01 to test the hypotheses,and,using the test statistic,determine if the manager should be concerned.
Plaques
Deposits of fatty substances, cholesterol, cellular waste products, calcium, and fibrin in the inner lining of an artery which can lead to atherosclerosis and other cardiovascular diseases.
Dementia
A state of mental deterioration characterized by impaired memory and intellect and by altered personality and behavior.
Pulmonary Embolism
A blockage in one of the pulmonary arteries in the lungs, typically caused by blood clots that travel from the legs or other parts of the body.
Chronic Alcoholism
A medical condition characterized by an uncontrollable need to consume alcohol despite the negative effects it has on one’s health and life.
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