An instructor wishes to determine which of two methods of teaching ---A or ---B is more effective in teaching a certain concept in statistics. In a class of 36 students, he used Method A and in another class where there are 40 students, he used method B. He gave the two classes the same examination and obtained the following results. Method A Method B X₁ = 78 X₂ = 70 S₂ = 6 S₁ = 4 Is he correct in assuming that method A is more effective than method B? Use a = 0.01

An instructor wishes to determine which of two methods of teaching ---A or ---B is more effective in teaching a certain concept in statistics. In a class of 36 students, he used Method A and in another class where there are 40 students, he used method B. He gave the two classes the same examination and obtained the following results. Method A Method B X₁ = 78 X₂ = 70 S₂ = 6 S₁ = 4 Is he correct in assuming that method A is more effective than method B? Use a = 0.01

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section10.8: Probability

Problem 32E

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