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Mathematics, 20.01.2020 23:31 july00
In a club that has 67 members, there are 31 males. what is the ratio of females to males in the club?
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Mathematics, 21.06.2019 19:40, evarod
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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In a club that has 67 members, there are 31 males. what is the ratio of females to males in the club...
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