Question: An article in Transfusion Science [Early Total White Blood Cell Recovery Is a Predictor of Low Number of Apheresis and Good CD34+ Cell Yield (2000,

An article in Transfusion Science [“Early Total White Blood Cell Recovery Is a Predictor of Low Number of Apheresis and Good CD34+ Cell Yield” (2000, Vol. 23, pp. 91–100)] studied the white blood cell recovery of patients with haematological malignancies after a new chemotherapy treatment. Data (in days) on white blood cell recovery (WBC) for 19 patients consistent with summary data reported in the paper follow: 18, 16, 13, 16, 15, 12, 9, 14, 12, 8, 16, 12, 10, 8, 14, 9, 5, 18, and 12.

(a) Is there sufficient evidence to support a claim that the mean WBC recovery exceeds 12 days?

(b) Find a 95% two-sided CI on the mean WBC recovery.

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a The null hypothesis is 12 versus 12 X 124737 S 36266 and N 19 ... View full answer

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