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Home Q & A Board Science-Related Homework Help Mathematics
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infantryman1986 infantryman1986
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6 years ago
A coal company wants to determine a 95 confidence interval estimate for the average daily tonnage of coal that it mines. Assuming the company reports that the standard deviation of daily output is 200 tons, how many days should it sample so that the margin of error will be 39.2 tons or less?
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syaarsyaar
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6 years ago
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infantryman1986 Author
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6 years ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
vernonb
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Yesterday
Smart ... Thanks!
asd454512
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2 hours ago
Correct Slight Smile TY
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