Teaching technique- test scores compared to old method

Reference no: EM13486235

Jill also wants to test this new teaching technique - she also expects the new method to increase test scores compared to the old method - so she uses the old method to teach one of her classes and the new method to teach a different section of the same course (i.e., her samples are independent of each other). Each section had 20 students in it. The class that was exposed to the old method averaged 81.0 for the course, and the other class averaged 81.8. The SS for the class exposed to the old method was 456; the SS for the class exposed to the new method was 494. Should she reject the null or not?

Reference no: EM13486235

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