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Question # 2. The manager at the Lawrence 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 they 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 they start their transaction to the time the transaction is completed and they 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 completed ANOVA table qt-1 = 3.74 a. State the appropriate null and alternative hypotheses. ANOVA: Single Factor SUMMARY b. Fill in the missing parts of the Count Average Variance ANOVA table and perform Taller 1 15 3043.9 827.4 the statistical hypothesis test Taller 2 15 3615,5 472.2 Taller 3 15 3427.7 445.6 using a = 0.05 Taller 15 4072.4 619.4 C. Based on the result of the test ANOVA in part c, if warranted, use the Source of Variation F Ferd Tukey-Kramer method with a Betacen Groups 36530.6 2.7694 = 0.05 to determine which Within Groups Total 69631 7 50 teller require the most time on average to complete a customer's transaction