Lead exposure can cause many neurological problems in young children. Lead exposure is measured as the lead blood level

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Lead Exposure Can Cause Many Neurological Problems In Young Children Lead Exposure Is Measured As The Lead Blood Level 1 (178.52 KiB) Viewed 25 times

Lead exposure can cause many neurological problems in young children. Lead exposure is measured as the lead blood level in micrograms per 100 mL. A study in El Paso Texas wanted to determine if lead blood level varied by distance to a lead-emitting smelter, which was defined as 0-1 miles from the smelter, 1-2.5 miles from the smelter, and 2.5-4 miles from the smelter. Here are the ANOVA results with a 0.05 level of significance. Which of the following statements is true? Sum Sa DF F value Mean Sq Pre>F) 601.518 300.759 3.4974 Distance 2 0.033 Residuals 121 10405.516 85.996 In order to determine which means are different we would need to calculate three Tukey pairwise confidence intervals. We can make causal conclusions about the relationship between distance to the smelter and lead blood level based on these data. Distance from the smelter is not significantly associated with lead blood level at 0:05 level of significance. O Variability in lead blood level exposure between the distance categories is greater than within the distance categories.