# An education specialist is considering the use of instructional material on compact discs for a special class

## Question:

(a) What null hypothesis should the education specialist use?

(b) What alternative hypothesis should be used if the specialist does not want to adopt the new discs unless they improve the standardized test scores?

(c) What alternative hypothesis should be used if the specialist wants to adopt the new discs unless they worsen the standardized test scores?

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**Related Book For**

## John E Freunds Mathematical Statistics With Applications

**ISBN:** 9780134995373

8th Edition

**Authors:** Irwin Miller, Marylees Miller