Posted: October 5th, 2016

IQ scores from the general population form a normal distribution with am = 100 ands = 15. However, data indicate that children’s intelligence may be negatively affected if their mothers have German measles during pregnancy.

IQ scores from the general population form a normal distribution with am = 100 ands = 15. However, data indicate that children’s intelligence may be negatively affected if their mothers have German measles during pregnancy. Using hospital records, a researcher obtained a sample of n = 25 children whose mothers all had German measles during their pregnancies. The average IQ for this sample wasx?= 96.4. Do these data indicate that German measles have a significant negative effect on IQ? Test withalpha=.05. Note µ = population mean x? = sample mean s = standard deviation

Source: http://www.homeworkminutes.com/question/view/280086/Basic-Biostatistics-for-Public-Health-Practice
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