In a study of androstane therapy for treatment of aplastic anemia (AA), neutrophil counts were reported...

In a study of androstane therapy for treatment of aplastic anemia (AA), neutrophil counts were reported for nine patients with acute severe AA and eight patients with chronic severe AA. These counts are shown in the table below. Do the data provide evidence that the population mean neutrophil count for patients with acute severe AA differs from the population mean neutrophil count for patients with chronic sever AA? Use a 99% confidence level. Explain your answer.

Acute AA	Chronic AA
5.2	2.6
5.9	2.6
4.9	1.7
2.3	2.2
3.8	1.9
2.4	2.7
3.7	2.7
1.6	2.7
2.2

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orchestra answered 2 years ago

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