Variables:
A data frame with 35 observations on the following 4 variables.
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treatment
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a factor with levels AA, C, and NC.
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low
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the result of the first test.
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high
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the result of the second test.
Details
The data arise from a large study of risk taking (Timm, 2002). Students were randomly assigned to three different treatments labelled AA, C and NC. Students were administered two parallel forms of a test called low and high. The aim is to carry out a test of the equality of the bivariate means of each treatment population.