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(7pt) The Scholastic Aptitude Test (SAT) contains three sections: critical reading, mathematics and writing. Each part...

  1. (7pt) 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 2018 version of SAT is available at the College Board website. A sample of SAT scores for 5 students follow:

                                                                                                                       ANOVA Table

Source of variation

Sum of Squares (SS)

Degrees of freedom

Mean Square (MS)

F

Treatment

93.3

2.0

46.67

8.75

Error

64.0

12.0

5.33

Total

157.3

14

                 SAT scores - 2017

                                                   

Student

Reading

Math

Writing

1

453

458

465

2

456

458

459

3

454

460

457

4

458

455

461

5

454

454

463

mean

455

457

461

  1. (5pt) Conduct a Fisher’s LSD test allowing for 5% error.

  1. (2pt) 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 LSD test? WHY?

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Expert Solution

orchestra answered 1 year ago
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