Mathematics, 09.12.2020 17:30 LeilaniCo

A study by the department of education of a certain state was trying to determine the mean SAT scores of the graduating high school seniors. The study examined the scores of a random sample of 238 graduating seniors and found the mean score to be 493 with a standard deviation of 97. Calculate the margin of error using the given formula. How could the results of the survey be made more accurate?

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A study by the department of education of a certain state was trying to determine the mean SAT score...

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