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Population, Sample, Statistic, and Parameter. Exercises 11–14 each describe a statistical study. In each case, identify the sample, the population, the sample statistic, and the population parameter.
12. Birth Weights. For 186 randomly selected babies, the average (mean) of their birth weights is 3103 grams (based on data from “Cognitive Outcomes of Preschool Children with Prenatal Cocaine Exposure,” by Singer et al., Journal of the American Medical Association, Vol. 291, No. 20).
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STAT. REASONING F/EVERYDAY LIFE-ACCESS
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