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 22:30
Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?
Answers: 3
Mathematics, 22.06.2019 04:20
Consider u = {x|x is a negative real number}which is an empty set? o {x|x eu and x has a negative cube root}o {x|x eu and x has a negative square root}{x|x eu and x is equal to the product of a positive number and -1}{x|x eu and x is equal to the sum of one negative and one positive number?
Answers: 1
Mathematics, 22.06.2019 05:00
The equation m = 19.32v can be used to find the mass m in grams of a pure gold coin with volume v in cubic centimeters. carl has a coin with a mass of 37.8 grams. the coun's volume is 2.1 cubic centimeters. could the coin be pure gold? explain your reasoning. whoever answers this correctly gets marked brainliest! this is also worth a decent amount of points than normal questions!
Answers: 3
Simplify (4/7) divided by (3/-8)...
Mathematics, 18.08.2019 23:10
Mathematics, 18.08.2019 23:10
Mathematics, 18.08.2019 23:10
History, 18.08.2019 23:10
History, 18.08.2019 23:10
Social Studies, 18.08.2019 23:10
Mathematics, 18.08.2019 23:10
Mathematics, 18.08.2019 23:10
Mathematics, 18.08.2019 23:10
Mathematics, 18.08.2019 23:10