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A random sample of 115 students has a test score average of 78 with a standard...

A random sample of 115 students has a test score average of 78 with a standard deviation of 10.3. Find the margin of error if the confidence level is 0.99. (Round answer to two decimal places)

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X= 78 Solution So 10.3 DE 115 2cool สวน margin of Bora Zenty = t (one vertete = 2.62.). VAS = 2.5164 Margin of Emor? 2:51

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