3. Two methods of teaching statistics are being tried by a professor. A class of 40 students is taught by method A and a class of 36 is taught by method B. the two classes are given the same final examination. The scores are: X1 = 78, X2 = 74. Using a 0.01 significance level, can we conclude that the average final examination scores produced by two methods are different if the population standard deviation is 5? %3D %3D

3. Two methods of teaching statistics are being tried by a professor. A class of 40 students is taught by method A and a class of 36 is taught by method B. the two classes are given the same final examination. The scores are: X1 = 78, X2 = 74. Using a 0.01 significance level, can we conclude that the average final examination scores produced by two methods are different if the population standard deviation is 5? %3D %3D

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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