answer a,b and c

Chapter 4. Data Management 6. One of the major Issues in customer service Is the speed with which a company responds to customer complaints. The manager of a telecommunication company aims to have a baseline data about the period the company is able to respond to customer complaints. The data will be used as a reference for a new system they want to adopt. The following data from a random sample of 25 complaints represent the number of days between the receipt of a complaint and the resolution of the complaint: a. Compute the mean, median, first quartile, and third quartile. b. Compute the range, Interquartile range, variance, standard deviation, and coefficient of variation. c. cm the basis ofthe results of [a1 and {b}, ifvou had to tell the president of the company how long a customer should expect to wait to have a complaint resolved, what would you say? Explain