A survey of shoppers is planned to see what percentage use credit cards.Prior surveys suggest 56% 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) 6664
B) 8519
C) 9466
D) 16,338
E) 21,513

Credit Card Use

The action or practice of purchasing goods or services using a credit card as the method of payment.

Sample Size

The number of observations or elements chosen from a population for the purpose of statistical analysis.

Confidence

The feeling or belief that one can have faith in or rely on someone or something.