Question

For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.

In a marketing survey, a random sample of 728 women shoppers revealed that 630 remained loyal to their favorite supermarket during the past year (i.e., did not switch stores).

What is the margin of error based on a 95% confidence interval? (Round your answer to three decimal places.)

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Hypothesis Testing

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