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:

Compute the mean, median, first quartile, and third quartile.

Compute the range, interquartile range, variance, standard deviation, and coefficient of variation.

On the basis of the results of (a) and (b), if you 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.