An educational psychologist is studying the differences in Mathematics achievement scores based from two types of tests. He/she divided equally the 18 participants and distributed at random to the types of test and the following results were gathered: Test A 81 100 88 85 84 100 91 98 80 Test B 93 73 83 98 77 85 85 84 90 (a)Is there significant difference in the Mathematics test scores at 5% level of significance assuming that normality assumption can not be satisfied? Use Wald-Walfowitz Runs Test. (b)Is there significant difference in the Mathematics test scores at 1% level of significance assuming that normality assumption can not be satisfied? Use Mann-Whitney U Test

An educational psychologist is studying the differences in Mathematics achievement scores based from two types of tests. He/she divided equally the 18 participants and distributed at random to the types of test and the following results were gathered: Test A 81 100 88 85 84 100 91 98 80 Test B 93 73 83 98 77 85 85 84 90 (a)Is there significant difference in the Mathematics test scores at 5% level of significance assuming that normality assumption can not be satisfied? Use Wald-Walfowitz Runs Test. (b)Is there significant difference in the Mathematics test scores at 1% level of significance assuming that normality assumption can not be satisfied? Use Mann-Whitney U Test

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.7: Probability

Problem 58E: What is meant by the sample space of an experiment?

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