Use a 0.05 significance level test the claim taht the three cateogries of blood lead level have hte same mean full IQ score. Does it appear that the exposure to lead has an effect on full IQ scores?
Source of Variation SS DF MS F P value F Crit
Between Groups 938.3653 2 469.1827 2.303395 0.104395 3.07309
Within Groups 24035.63 118 203.6918
Total 24974 120