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The Scholastic Aptitude Test (SAT) contains three sections: critical reading, mathematics and writing. Each part is scored on a 500-point scale.

The Scholastic Aptitude Test (SAT) contains three sections: critical reading, mathematics

and writing. Each part is scored on a 500-point scale. Information on test scores for the 2017

version of SAT is available at the College Board website. A sample of SAT scores for 5 students

follow:

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a. (10pt)You are hired as statistician to test whether there are any differences among the three

sections of the SAT, allowing for 10% error.


b. (3pt) The level of difficulty for all the three sections of the SAT, measured by the score, are

supposed to be the same. Do you agree with this after the results of the test? WHY?

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