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What is the margin of error of a significance level of 0.01 used in a sample mean of 117, the standard deviation of 6, and

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What is the margin of error of a significance level of 0.01 used in a sample mean of 117, the standard deviation of 6, and a sample size of 31?Yelan wants to estimate the average selling time (in days) of a condominium unit. She wants to determine it to be within 2 days with 95% condence. If the standard deviation is 13.3. How many units should Yelan sample? (FOR THIS QUIZ ROUND OFF YOUR ANSWER IN 4 DECIMAL PLACES NOT IN WHOLE NUMBERS)

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