Reflect: choose one idea. write about it in the space below. 1. write and draw to explain the following amount as if you were talking to a young child. use another sheet of paper for your drawing. $1.36. (2) what time is it now. use at least three of these words in your answer. a. m. midnight minute noon p. m. quarter past. (3) write at least three things you know about money.

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.