Use the Friedman test procedure to analyze the data set in DS 11.4.3 concerning cement strengths. (a)
Question:
(a) What are the average ranks 1., 2., 3., 4., and 5.?
(b) What is the value of the test statistic S?
(c) Write down an expression for the p-value and use a computer package to evaluate it.
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a r 1 3500 r 2 2500 r 3 1583 r 4 4000 r 5 3417 b ...View the full answer
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Related Book For 
Probability And Statistics For Engineers And Scientists
ISBN: 9780495107576
3rd Edition
Authors: Anthony Hayter
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