To compare two elementary schools regarding teaching of reading skills, 12 sets of identical twins were used. In each case, one child was selected at random and sent to school A, and his or her twin was sent to school B. Near the end of fifth grade, an achievement test was given to each child. The results follow: Twin Pair123456School A165150859298121School B9416092107100115Twin Pair789101112School A9211512013812694School B9595125136132108Suppose a sign test for matched pairs with a 5% level of significance is used to test the hypothesis that the schools have the same effectiveness in teaching reading skills. What is the level of significance α?

Given information: Given data represents the scores of school-A and school-B for 12 sets of…

Answered: To compare two elementary schools…

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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To compare two elementary schools regarding teaching of reading skills, 12 sets of identical twins were used. In each case, one child was selected at random and sent to school A, and his or her twin was sent to school B. Near the end of fifth grade, an achievement test was given to each child. The results follow:

Twin Pair	1	2	3	4	5	6
School A	165	150	85	92	98	121
School B	94	160	92	107	100	115

Twin Pair	7	8	9	10	11	12
School A	92	115	120	138	126	94
School B	95	95	125	136	132	108

Suppose a sign test for matched pairs with a 5% level of significance is used to test the hypothesis that the schools have the same effectiveness in teaching reading skills. What is the level of significance α?

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