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Sickle-cell disease is a painful disorder of the red blood cells that in the United States...

Sickle-cell disease is a painful disorder of the red blood cells that in the United States affects mostly African-Americans. To investigate whether the drug hydroxyurea can reduce the pain associated with sickle-cell disease, a study by the National Institutes of Health gave the drug to 160 sickle-cell sufferers and a placebo to another 160. The researchers then counted the number of episodes of pain reported by each subject. What is the population of interest and what is the size of the sample in this study?

Human red blood cells; 160
Human red blood cells; 320
African Americans with sickle-cell disease in the US; 160

African Americans with sickle-cell disease in the US; 320

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Answer #1

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Our populace of intrigue are the African-American in United States.

Amid the investigation we don't check or consider red platelets after but instead the impact of medication in diminishing torment from sickle cell illness.

Size of the example is 320 as our analysis can't gauge the effect of the medication except if there is something to contrast it and.

Here medication is contrasted and fake treatment consequently those 160 individuals who were given fake treatment are likewise the piece of our example estimate.

option (d) is the correct answer

that is,

African Americans with sickle-cell disease in the US; 320

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