Consider the following two 2 Ã 2 tables: a. Calculate the proportion of failures for all four
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a. Calculate the proportion of failures for all four treatments.
b. Calculate the difference in proportions of failure between Treatments A and B. Then do the same calculation to compare Treatments C and D.
c. Calculate the relative risk of failure between Treatments A and B. Then do the same calculation to compare Treatments C and D.
d. Which pair of treatments do you think produce responses that are more different: A and B or C and D?
e. Which statistic reflects your answer to part (d): difference in proportions or relative risk? Explain.
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Related Book For
Introduction To Statistical Investigations
ISBN: 9781118172148
1st Edition
Authors: Beth L.Chance, George W.Cobb, Allan J.Rossman Nathan Tintle, Todd Swanson Soma Roy
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