What is the standard deviation-georgetown telephone company

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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 64% of the cases. Suppose that the 20 cases reported today are representative of all complaints.

a-1. How many of the problems would you expect to be resolved today? (Round the final answer to 2 decimal places.)

a-2. What is the standard deviation? (Round the final answer to 4 decimal places.)

b. What is the probability that 15 of the problems can be resolved today? (Round the final answer to 4 decimal places.)

c. What is the probability that 15 or 16 of the problems can be resolved today? (Round the final answer to 4 decimal places.)

d. What is the probability that more than 15 of the problems can be resolved today? (Round the final answer to 4 decimal places.)

Reference no: EM132866918

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