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Help! Urgent Statistics homework Help!
With a 92% level of confidence, a company production street sign wants to be sure the length of their product is meeting quality standards. Th error allowed is 1.5 cm and the manager knows that the standard deviation is to be 3 cm. How many signs does he need to sample?
Note: This is a confidence intervals problem, and I specifically don't understand what the 1.5 error allowed is categorized as, please help me, thanks!
Note: This is a confidence intervals problem, and I specifically don't understand what the 1.5 error allowed is categorized as, please help me, thanks!
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This is a complicated question, you might be better asking your instructor. Since your question was urgent, though, maybe these links can put you on the right path?
source(s):
http://en.wikipedia.org/wiki/Standard_deviation
http://en.wikipedia.org/wiki/Confidence_interval
http://en.wikipedia.org/wiki/Standard_deviation
http://en.wikipedia.org/wiki/Confidence_interval
voted helpful: lilyloretta
Voted "No best answer": lidyax, kty2777,
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There is no need to spam Mahalo with irrelevant tags.
It will not generate more interest in your question, it will only serve to irritate other, wiser members of the community.
@konsiders I'm sorry for hijacking your answer for this, but it's not something I could post as a separate answer.