Lead has an atomic mass of 207.19
grams. Mercury has an atomic mass
of 200.6 grams. How much...
Mathematics, 14.11.2020 01:00 Jc8777
Lead has an atomic mass of 207.19
grams. Mercury has an atomic mass
of 200.6 grams. How much greater
is the atomic mass of Lead than
Mercury?
1
2
3
Answers: 3
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Me. i can't figure out this question. give an explanation too. .
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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.
Answers: 3
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