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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. 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

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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Follow the steps in testing hypothesis to answer the problem STEP 1. State the claim, null and alternative hypotheses. STEP 2. Sketch the label critical value. STEP 3. Decision Rule STEP 4. Calculate the Test-statistics STEP 5. State the 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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