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For 124 consecutive days, a process engineer has measured the temperature of cha

ID: 334938 • Letter: F

Question

For 124 consecutive days, a process engineer has measured the temperature of champagne bottles as they are made ready for serving. Each day, she took a sample of 5 bottles. The average across all 620 bottles (124 days, 5 bottles per day) was 41 degrees Fahrenheit. The standard deviation across all bottles was 1.2 degrees Fahrenheit. When constructing an X-bar chart, what would be the center line? degrees Fahrenheit For 124 consecutive days, a process engineer has measured the temperature of champagne bottles as they are made ready for serving. Each day, she took a sample of 5 bottles. The average across all 620 bottles (124 days, 5 bottles per day) was 41 degrees Fahrenheit. The standard deviation across all bottles was 1.2 degrees Fahrenheit. When constructing an X-bar chart, what would be the center line? degrees Fahrenheit

Explanation / Answer

Answer: Centerline = 41 degrees Fahrenheit

Explanation: In an X-bar chart, the centerline is represented by the average of all the observations. In the given process, the process engineer took a sample of 5 bottles per day for 124 consecutive days. Across all 620 bottles (124 days, 5 bottles per day), she noted that the average temperature of champagne bottles was 41 degrees Fahrenheit with a standard deviation of 1.2 degrees Fahrenheit. Therefore, the centerline of the X-bar chart = 41 degrees Fahrenheit.

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