Consider a prism with a height of 8 inches and a 14−inch by 14−inch square base, and a cylinder with a height of 10 inches and a diameter of 10 inches. Determine the difference in volume between the two solids.

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.