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What is the margin of error based on a confidence

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Reference no: EM132463503

In a marketing survey, a random sample of 994 supermarket shoppers revealed that 262 always stock up on an item when they find that item at a real bargain price.

(a) Let p represent the proportion of all supermarket shoppers who always stock up on an item when they find a real bargain. Find a point estimate for p. (Enter a number. Round your answer to four decimal places.)

(b) Find a 95% confidence interval for p. (For each answer, enter a number. Round your answers to three decimal places.)

lower limit

upper limit

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

Reference no: EM132463503

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