A Survey of Shoppers Is Planned to See What Percentage

Multiple Choice

A survey of shoppers is planned to see what percentage use credit cards.Prior surveys Suggest 54% of shoppers use credit cards.How many randomly selected shoppers must we Survey in order to estimate the proportion of shoppers who use credit cards to within 1% with 95% confidence?

A) 16,471
B) 8589
C) 20,745
D) 6718.3
E) 9543