he 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 i standard error of 5.3 ± 0.3 for the men and 3.6 ± 0.2 for he 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 nswers to two decimal places.) nterpret the interval. O we are 95%% confident that the true average blood lead level for male workers is less than that of female workers by an amount within the confidence interval. O we are 95% confident that the true average blood lead level for male workers is greater than that of female workers by an amount outside the confidence interval. O we cannot draw a conclusion from the given information. O Wo aro 0se onfidont thatti

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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 5.3 ± 0.3 for the men and 3.6 t 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.)
Interpret the interval.
O we are 95% confident that the true average blood lead level for male workers is less than that of female workers by an amount within the confidence interval.
O we are 95% confident that the true average blood lead level for male workers is greater than that of female workers by an amount outside the confidence interval.
O we cannot draw a conclusion from the given information.
O we are 95% confident that the true average blood lead level for male workers is greater than that of female workers by an amount within the confidence interval.
Transcribed Image Text: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 5.3 ± 0.3 for the men and 3.6 t 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.) Interpret the interval. O we are 95% confident that the true average blood lead level for male workers is less than that of female workers by an amount within the confidence interval. O we are 95% confident that the true average blood lead level for male workers is greater than that of female workers by an amount outside the confidence interval. O we cannot draw a conclusion from the given information. O we are 95% confident that the true average blood lead level for male workers is greater than that of female workers by an amount within the confidence interval.
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