# Question: What is the purpose of compensating transactions

What is the purpose of compensating transactions? Present two examples of their use.

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Consider a multidatabase system in which it is guaranteed that at most one global transaction is active at any time, and every local site ensures local serializability.a. Suggest ways in which the multidatabase system can ...Consider the data in Exercise 15-1. Use the normal approximation for the sign test to test H0: = 70 versus H0: 7.0. What is the P-value for this test? Use the normal approximation to the sign test for the data in Exercise 15-10. What conclusions can you draw?Consider the test statistic for the sign test in Exercise 15-10. Find the P-value for this statistic. Compare it to the P-value for the normal approximation test statistic computed in Exercise 15-11.Apply the Wilcox on signed-rank test to the blood cholesterol data from Exercise 10-39. Use a = 0.05 and assume that the two distributions are continuous.Post your question