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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 found a confidence interval for the mean score to be between 475 and 521 . What is the margin of error on the survey? Do not write
+- on the margin of error.
Answer:___

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 found a confidence interval for the mean score to be between $475$ and $521$ . What is the margin of error on the survey? Do not write $\pm$ on the margin of error. $\newline$ Answer:__________

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Interpret confidence intervals for population means

Full solution

Q. 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 found a confidence interval for the mean score to be between

475

and

521

. What is the margin of error on the survey? Do not write

\pm

on the margin of error.

\newline

Answer:__________

Find Margin of Error: To find the margin of error, subtract the lower bound of the confidence interval from the upper bound and then divide by $2$ . $\frac{521 - 475}{2} = \frac{46}{2}$
Calculate Division: Calculate the division. $46 / 2 = 23$

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