monitoring lead in the air after an explosion at a battery factory, it is found that the amount of lead (in ug/m3) over a 6 day period had a standard error of 2.57. Find the margin of error that corresponds to a 95% confidence interval. 

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.3: Special Probability Density Functions
Problem 28E
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In monitoring lead in the air after an explosion at a battery factory, it is found that the amount of lead (in ug/m3) over a 6 day period had a standard error of 2.57. Find the margin of error that corresponds to a 95% confidence interval. 
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