Please help me answer this
...
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.
Answers: 3
Mathematics, 21.06.2019 20:00
You wanted to draw an enlargement of design that printed on a card that is 4 in by 5
Answers: 1
Mathematics, 22.06.2019 01:30
Acontainer holds 0.7 liters of oil and vinegar. 3/4 of the mixture is vinegar. how many liters of oil are in the container? express your answer as both a fraction and a decimal.
Answers: 1
Mathematics, 22.06.2019 04:30
4percent of a number is what fraction of that number? ? i really need asap
Answers: 2
Mathematics, 05.05.2020 22:57
History, 05.05.2020 22:57
Health, 05.05.2020 22:57
Mathematics, 05.05.2020 22:57
History, 05.05.2020 22:57
Mathematics, 05.05.2020 22:58
Mathematics, 05.05.2020 22:58
Mathematics, 05.05.2020 22:58
Mathematics, 05.05.2020 22:58