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19. Furniture Land South surveyed 600 consumers and found that 414 were enthusiastic about a new...

19. Furniture Land South surveyed 600 consumers and found that 414 were enthusiastic about a new home décor they plan to show in their store in Los Angeles, California. Construct the 99 percent confidence interval for the population proportion.?

Math   Statistics-And-Probability   
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Answer #1

Sample proportion is

For 99% confidence interval, using excel function "=NORMSINV(0.995)", critical value of z will be
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Confidence interval for population proportion will be

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