The manager of a department store wants to determine the proportion of people who use the store's credit cards for their purchases.What sample size should he take so that, at 95% confidence, the error will not be more than 6%?

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The Answer of The manager of a department store wants to determine the proportion of people who use the store's credit cards for their purchases.What sample size should he take so that, at 95% confidence, the error will not be more than 6%?

The Manager of a Department Store Wants to Determine the Proportion