An Internet book retailer promises to ship all customer orders within 24 to 36 hours of receiv-ing an order at its web site. Actual shipment data for all computers shipped during the past month showed that the average delivery time was 30 coffee served by a café located in a shopping cen-hours, and the standard deviation was 4 hours. ter’s food court. The café manager wants to en-sure that the coffee temperature in each cup (a) Is the company delivering Six Sigma quality meets established federal guidelines of 160 to 180 to its customers? degrees Fahrenheit. Based on the information (b) If not, then how much should the standard provided, what can you conclude about the sigma deviation of the process be reduced to get Six level? Sigma quality?