A study by the department of education of a certain state was trying to determine the mean SAT scores of the graduating high sch

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2 years ago

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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 sch

ool seniors. The study found that the mean SAT score was 516 with a margin of error of 20. Write a confidence interval for the true mean SAT score of the graduating high school seniors.

Mathematics

1 answer:

natali 33 [55] · Answer 1 · 2022-12-21T14:29:49+03:00

A confidence interval for the true mean SAT score of the graduating high school seniors will be (496; 536)

<h3>What is a confidence interval?</h3>

A confidence interval (CI) is a range of estimates for an unknown parameter in frequentist statistics.

Mean score ± margin of error

Margin of Error = 20

Mean SAT score = 516

Hence,the confidence interval will be:-

= 516 ± 20

Lower boundary = 516 - 20 = 496

Upper boundary = 516 + 20 = 536

To know more about confidence intervals follow

brainly.com/question/16974109

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