Business, 28.06.2019 17:00 chainsaw234567
The level of lead in the blood was determined for a sample of 152 male hazardous-waste workers age 20-30 and also for a sample of 86 female workers, resulting in a mean ± standard error of 5.4 ± 0.3 for the men and 3.7 ± 0.2 for the women. calculate an estimate of the difference between true average blood lead levels for male and female workers in a way that provides information about reliability and precision. (use a 95% confidence interval. round your answers to two decimal places.)
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