Providing excellent customer service is essential in any business. A bank samples 7 tellers and monitors the time to complete a transaction. The times ( in whole minutes) are 2,4,2,5,2,3, and 10. The variance for the data calculated is 4.33. Given this information, compute the following:
a) Interquartile Range
b) Coefficient of variation
c) You are the statistician. The bank informs you for your statistical analysis, they do not want you to use the date point of 10 minutes since it is not in line with the other data. How do you respond?