Question: 25. The speed with which utility companies can resolve problems is very important. The Georgetown Telephone Company (GTC), reports that it can resolve customer problems

25. The speed with which utility companies can resolve problems is very important. The Georgetown Telephone Company (GTC), reports that it can resolve customer problems the same day they are reported in 70% of the cases. Suppose that the 15 cases reported today are representative of all complaints.

a. How many of the problems would you expect to be resolved today? What is the standard deviation?

b. What is the probability 10 of the problems can be resolved today?

c. What is the probability 10 or 11 of the problems can be resolved today?

d. What is the probability more than 10 of the problems can be resolved today?

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