Plz help my with this!
...
Answers: 1
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.
Answers: 3
Mathematics, 21.06.2019 20:20
Aline passes through (1,-5) and(-3,7) write an equation for the line in point slope form rewrite the equation in slope intercept form
Answers: 1
Mathematics, 22.06.2019 00:00
Two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: what is the approximate distance, in feet, between the two poles? 6.93 feet 8.66 feet 12.32 feet 15.59 feet
Answers: 1
English, 23.08.2019 10:30
History, 23.08.2019 10:30
Biology, 23.08.2019 10:30
Mathematics, 23.08.2019 10:30
Mathematics, 23.08.2019 10:30
Social Studies, 23.08.2019 10:30
Mathematics, 23.08.2019 10:30
Biology, 23.08.2019 10:30
Mathematics, 23.08.2019 10:30