Question: Please no excel. Show work :) 1. Problem 20 on page 460 of textbook. 20. A teller at a drive-up window at a bank had
Please no excel. Show work :)
1. Problem 20 on page 460 of textbook. 20. A teller at a drive-up window at a bank had the following service times (in mainutes) for 20 randomly selected custoniers. C. What alpha tisk would control limuss of 4.14 and 4.86 provide? f. Uting limits of 4.14 and 4.36, tre any sample means begond the control limits? If 30 , whch one(t)? . Coestruct control charts for means and rages using 3 Th Table 10.2. Are amy samples beyond the control linits? if sa, which oneigh? h. Explain why the control lienits are different for means in parts dand e. L. If the procest has a Lnown mean of 4.4 and a knewa standand deviaien of . IS, what would tarcesipma controf limits be for a matas chart Are any sample means beyond the control limits? If so, which one(1)


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