Which one is correct? Please hurry
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Answers: 2
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 20:00
Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.
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Mathematics, 22.06.2019 00:00
Someone which statements are true? check all that apply.
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Mathematics, 22.06.2019 01:00
Is experimental probibilty the same as the observed frequency in math? i need the answer asap!
Answers: 1
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