The manager at the Duithanyalt National Bank is interested in determining whether there is a difference in the meantime that customers spend completing their transactions depending on which of four tellers the}? use. To conduct the test, the manager has selected simple random samples of 15 customers for each of the tellers and has timed them {in seconds) from the moment the}.r start their transaction to the time the transaction is completed, and the}.r leave the teller station. The manager then asked one of her assistants to perform the appropriate statistical test. The assistant returned with the following partially,r completed ANDVA table as shown in Figure 1. Summary Groups. Count Sum Average Variance Teller I IS 3343.9 8214 Teller 2 15 34515.5 4?2.2 Teller 3 [5 3,421? 445.6 Teller-4 [5 4,9?2.4 619.4 ANDUA Source of Critical Variation of F-ra'tio p-VEILIE F-ualue Between Grou .2; Within Group: Total --- -- -I- Figure 1 o.oooo 2.7694