The air quality was tested in many office buildings in two cities. The results of the testing is shown in this box plots.
Select all the statements that must be true.

A) The lowest record measurement was in city Q

B) all buildings tested in city P are in the healthy range

C) The mean for city P is greater than the mean for city Cue

D) The range for city Q is greater then the range of city P

E) The median of city P is greater than the median for city Q

The parabola opens: y=√x-4 (principal square root) up down right left

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

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.