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Mathematics, 21.06.2019 19:40
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
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Mathematics, 21.06.2019 20:30
2/3(-6y+9x) expand each expression using the distributive property
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Mathematics, 21.06.2019 22:30
Factor the polynomial by its greatest common monomial factor.
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Mathematics, 21.06.2019 23:30
Alex's monthly take home pay is $2,500. what is the maximum bad debt payment he can maintain without being in credit overload?
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