Question
A researcher is interested in the relationship between IQ and longevity. A sample of n = 200 obituaries is selected from the newspaper and old
A researcher is interested in the relationship between IQ and longevity. A sample of n = 200 obituaries is selected from the newspaper and old school records are consulted to determine the individuals' IQ scores when they were between the ages of 10 and 20. The individuals were then classified into two IQ groups and three age groups at the time of death. The data are as follows. Based on these results, is there a significant relationship between IQ and longevity? Test with = .01. Age at the time of death
<60 60 to 75>75 IQ<110 41 63 36 IQ 110 9 27 24
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