IQ scores were available for113 men in the VLBW group. The mean IQ was 87.6, and the
Chapter 0, Problem 22.29(choose chapter or problem)
IQ scores were available for113 men in the VLBW group. The mean IQ was 87.6, and the standard deviationwas 15.1. The 106 men in the control group had mean IQ 94.7, with standarddeviation 14.9. Is there good evidence that mean IQ is lower among VLBW menthan among controls from similar backgrounds?
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