it is known that the population variance equals 484. with a 0.95 probability, the sample size that needs to be taken if the desired margin of error is 5 or less is

What is likely to happen if a new aggregate demand curve moves to the right? prices and output would drop, and the equilibrium point will stay the same. prices would rise, and output would drop in the short run. prices and output would rise, and the equilibrium point will change. prices would rise, and output would drop in the long run.