What is 5 x 23?
I need help if you want brain liest.
Go on You tube and find a really really good video about s:e:x or something
get the U R L
past e it into the answe r
Thank you!

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.

Math question.. plz me .. best answer all

50 points~ ! i have to turn this in tomarrow