Amy is considering visiting her new friend at one of his beach houses in Florida

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.

Which expression is equal to (f+g)(x)?

In a timed typing test lara typed 63 words per minute.estimate the number of words she should be able to type in half in hour show your work