Hey guys be careful with the answers, I have been getting most of my answers wrong. And please can you send the answer a little bit faster please ??

A pollster is hired to determine the percentage of New Jersey residents favoring the legalization of marijuana. A preliminary poll found that 288 out of 400 people were in favor of legalizing marijuana. If we require 95% confidence that the estimated value is within 1% of the true value, how many more people should they poll? Question 10 2 pts A researcher is studying the wingspan of promethea moths. He wants to be 9% confident that his average is within 0.5 cm of the population mean. From past data he knows that the standard deviation is 1.4 cm. How many measurements must he take so that his goal is achieved