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Explain the population variance in blood platelet count

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Reference no: EM131752824

Question: Medicine and Clinical Studies The normal blood platelet count for an adult ranges from 150,000 to 400,000, with a standard deviation of approximately 62,500. A researcher has speculated that increased exposure to pollutants has increased the variability in numbers of blood platelets. A random sample of 37 adults was obtained, and the blood platelet count was measured in each person. The sample standard deviation was s = 65,268. Is there any evidence to suggest the population variance in blood platelet count has increased? Assume normality and use a = 0.001.

Reference no: EM131752824

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