D.60 An elementary school principal wants to compare the learning outcomes of two different methods for teaching first grade children to read. The two methods are phonics and rote. The first graders at the principal's school are randomly assigned to two classes at the beginning of the school year. During that school reading by phonics while the teacher of the other class teaches by the rote method. At the end of the school year the two classes are given a standardized reading test. The scores are presented in Table 12. Does this data give statistically significant evidence that the phonics method tends to produce higher test scores than the rote method? Test at significance level .05, using a one-sided test, and state your conclusion in words. Use the t-test that assumes homoscedasticity. year, the teacher in one class teaches phonics rote 80 75 68 84 60 72 81 65 76 76 83 74 80 63 62 85 76 70 72 71 77

D.60 An elementary school principal wants to compare the learning outcomes of two different methods for teaching first grade children to read. The two methods are phonics and rote. The first graders at the principal's school are randomly assigned to two classes at the beginning of the school year. During that school reading by phonics while the teacher of the other class teaches by the rote method. At the end of the school year the two classes are given a standardized reading test. The scores are presented in Table 12. Does this data give statistically significant evidence that the phonics method tends to produce higher test scores than the rote method? Test at significance level .05, using a one-sided test, and state your conclusion in words. Use the t-test that assumes homoscedasticity. year, the teacher in one class teaches phonics rote 80 75 68 84 60 72 81 65 76 76 83 74 80 63 62 85 76 70 72 71 77

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 13PT

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