John says that the logarithmic function g(x) = ln(x - 2) + 5 is translated 5 units right and 2 units down based on the function f(x) = ln (x). His teacher tells him that his answer is incorrect, but he cannot figure out why. Can you explain his error and tell him what the correct answer should be?

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.