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 that the mean SAT score was 454 with a margin of error of 17 . Write a confidence interval for the true mean SAT score of the graduating high school seniors.(______,______)
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 that the mean SAT score was 454 with a margin of error of 17 . Write a confidence interval for the true mean SAT score of the graduating high school seniors.(______,______)
Understand Information: Understand the given information.The mean SAT score is given as 454, and the margin of error is given as 17. The confidence interval will be the range from the mean minus the margin of error to the mean plus the margin of error.
Calculate Lower Bound: Calculate the lower bound of the confidence interval.Lower bound = Mean - Margin of ErrorLower bound = 454−17Lower bound = 437
Calculate Upper Bound: Calculate the upper bound of the confidence interval.Upper bound = Mean + Margin of ErrorUpper bound = 454+17Upper bound = 471
Write Confidence Interval: Write the confidence interval.The confidence interval is the range from the lower bound to the upper bound, which is (437,471).
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