A Cooling Company X has recently implemented a statistical process control method. The accompanying table shows the recorded temperatures of five different samples of walk-in coolers that were produced in the previous month. O 104.55 Sample 1 Sample 2 Sample 3 Sample 4 Given the table information, what is the UCL in X_bar chart? O 106.55 O 107.55 Observation 1 101 100 101 99 105.55 Observation 2 103 102 105 104 Observation 3 102 102 103 102 Observation 4 104 101 102 101

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