Two researchers studying vaccination rates independently draw samples of 50 chil

Question

Two researchers studying vaccination rates independently draw samples of 50 children, ages 3-18 months, fom a large urban area, and determine if they are up to date on their vaccinations. One researcher finds that 84 percent of the children in her sample are up to date, and the other finds that 86 percent in his sample are up to date Assuming both followed proper sampling procedures and did their calculations correctly, what is a likely explanation for this discrepancy? The Affordable Care Act O A Ztest OAn actual difference between these groups Expected deviation due to erro

Explanation / Answer

Both researchers select their sample independently so it is very unlikely thay both have sample number of people and same person. this is due to "An actual difference between these groups"

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