6. Two methods of teaching statistics are being tried by a professor. A class of 40 students is taughtby method A and a class or 36 is taught by method B. the two classes are given the same finalexamination. The scores are Xı = 78, X2 = 74. using a 0.01 significance level, can we conclude thatthe average final examination scores produced by the two methods are different if thepopulation standard deviation is 5?Но:H1:a =Zcri =Zcom =comparisonComputation:DR:Conclusion:

Let sample 1 for method A and sample 2 for method B. Given: n1=40, n2=36x1¯=78, x2¯=74σ1=5, σ2=5

Answered: the average final examination scores…

the average final examination scores produced by the two methods are different if the population standard deviation is 5?

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 25SGR

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Question

6. Two methods of teaching statistics are being tried by a professor. A class of 40 students is taught
by method A and a class or 36 is taught by method B. the two classes are given the same final
examination. The scores are Xı = 78, X2 = 74. using a 0.01 significance level, can we conclude that
the average final examination scores produced by the two methods are different if the
population standard deviation is 5?
Но:
H1:
a =
Zcri =
Zcom =
comparison
Computation:
DR:
Conclusion:

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