Question: QUESTION 4 A teller at a drive-up window at a bank had the following service times (in minutes) for 20 randomly selected customers: Sample #1

QUESTION 4 A teller at a drive-up window at a bank had the following service times (in minutes) for 20 randomly selected customers: Sample #1 (10AM- Sample #2 (11AM- Sample #3 (Noon- 11AM) Noon) 1PM) 4.5 4.6 4.5 4.2 4.5 4.6 4.2 4.4 4.4 4.3 4.7 4.4 What will the UCL and LCL for X-bar Chart? (Do not round intermediate calculations. Round your answers to three decimal places)

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