IQ scores from samples of subjects with low lead exposure medium lead exposure and high lead exposure
C) The following data list the IQ scores from samples of subjects with low lead exposure, medium lead exposure, and high lead exposure.
a) Use the Kruskal-Wallis test and a significance level of 5% to test the claim that the three samples come from populations with the same mean.
| Low Lead Level | Medium Lead Level | High Lead Level |
| 85 | 78 | 93 |
| 90 | 97 | 100 |
| 107 | 107 | 97 |
| 80 | 79 | |
| IOO | 90 | 97 |
| 97 | 83 | |
| 101 | ||
| 64 |
b) Will you reach the same conclusion using ANOVA?
D) Provide an update of your contribution to your group project?
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