shaelyn0920
06.07.2019 •
Mathematics
For 138 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 9 bottles. the average across all 1242 bottles (138 days, 9 bottles per day) was 51 degrees fahrenheit. the standard deviation across all bottles was 1.4 degrees. when constructing an x-bar chart, what would be the upper control limit?
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