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 %3!

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Follow the steps in testing hypothesis to answer the problem. STEP 1. Specify the Null Hypothesis STEP 2. Specify the Alternative Hypothesis STEP 3. Set the Significance Level STEP 4. Calculate the Test Statistic and Corresponding P-Value STEP 5. Drawing a Conclusion
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
%3!
Transcribed Image Text: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 %3!
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