Reference no: EM132834563
Columbia Continental Bank experimented using different tellers for business and personal banking customers. A random sample was collected of the time in seconds that it took to service each type of customer. The results as follows: Personal Banking Customers: 131,80,140,118,79,94,103,145,113,100,122
Business Customers: 170,177,150,208,151,127,147,140,109,184,119,149,129,152
Compute the mean, median, range, and the standard deviation for the time it took to service each type of client