Experimental teaching of arithmeticIn a study of a new method of teaching arithmetic, claimed to improve on conventionaltechniques, 400 children were divided at random into two groups A and B, of sizes 250 and 150respectively. Those in group B were taught using the experimental method, while those ingroup A were taught by conventional methods. After completion of the course all the pupilswere given the same test paper, and the group scores were as follows.Group A mean 67-8, variance 60-4,Group B: mean 70-2, variance 55.6.method B is effective? State carefully your null hypothesis,Is there any evidence thatalternative hypothesis and conclusion.

Answered: Experimental teaching of arithmetic In…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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