QUESTION 3 In a random sample of 350 food shops, it was found that 130 of them

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QUESTION 3

In a random sample of 350 food shops, it was found that 130 of them had special offers.

(a) Calculate an approximate 95% confidence interval for the population of all food shops with special offers.

(b) Estimate the new size of a random sample required for an approximate 95% confidence interval for the proportion calculated in (a) that has margin of error of 0.04.

Related Book For answer-question

Statistics for Business and Economics

ISBN: 978-0132930192

8th edition

Authors: Paul Newbold, William Carlson, Betty Thorne

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Posted Date: Jul 20, 2020 02:24 PM

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QUESTION 3 In a random sample of 350 food shops, it was found that 130 of them

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a Let p be the proportion of all food shop with special offer Ps130350 qs113... View the full answer

Statistics for Business and Economics

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