A gigantic warehouse stores approximately 80 million empty aluminum beer and soda cans. Recently, a tire occurred at the warehouse. The smoke from the re contaminated many of the cans with blackspot, rendering them unusable. A statistician was hired by the insurance company to estimate p, the true proportion of cans in the warehouse that were contaminated by the re. How many aluminum cans should be random y sampled to estimate p to within 0.04 with 95% confidence? The statistician should sample cans to estimate the proportion that were contaminated by the re to within 0.04 with 95% confidence. (Round up to the nearest can.)