Akoshia has more money than Komley. If Akoshia gave Komley $20,they would have the same amount. while if Komley gave Akoshia $22. Akoshia would then have twice as much as Komley. How much does each one actually have?​

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.