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Question 2 A survey recently reported that the mean national annual expenditure for inpatient and outpatient services of all persons over 64 years of age
Question 2 A survey recently reported that the mean national annual expenditure for inpatient and outpatient services of all persons over 64 years of age was $5,423 with a standard deviation of $979. A random sample of 352 persons over age 64 living in Sudbury had an average expense of $5,516. a) Can we conclude that the mean inpatient and outpatient expense of all Sudbury residents over age 64 is higher than the national average of $5,423? Use the 0.01 level of significance. AN[10 marks) b) Calculate the P-value for this test. Would your answer have changed if you had used a 0.05 level of significance? AP[6 marks) c) The P-value is not the probability that Ho is true. Discuss this claim, stating your position explicitly. AP[4 marks)
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