intext:"A quality control engineer wishes to perform an estimate of the average amount a machine is filling a can. He knows the distribution is normal and wants to be accurate within .05 oz and knows the standard deviation is 1.1 oz. If he will be performing a 99% confidence interval, what size sample does he need?"

I'm terrible at math any here is appreciated.

You are assembling pieces of an iron gate to complete a fence. the finished gate will look like the one below. in order to assemble the gate it is important to under how the pieces are related. part 1: how are pies 1 and 2 in the archway related? part 2: how are the rectangular sections 5 and 6 in the center of the gate related to each other?

Abouncy ball is released from a certain height. on the first bounce, it travels 32cm. with each subsequent bounce, it travels 9/10 the distance of the previous bounce. what is the total distance that the ball has traveled when it completes its 25th bounce?