A researcher interested in language development obtains a sample of 25 three-year-old girls and a sample of 25 three-year-old boys. Each child is given a vocabulary test and the researcher computes the mean score for each sample. The difference between the two sample means is an example of a
a. statistic
b. variable
c. constant
d. parameter
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Home » Mathematics » A researcher interested in language development obtains a sample of 25 three-year-old girls and a sample of 25 three-year-old boys. Each child is given a vocabulary test and the researcher computes the mean score for each sample.