Question: 1. You are developing an X-bar chart based on sample means. You know the standard deviation of the process is 7, the desired confidence level

1. You are developing an X-bar chart based on sample means. You know the standard deviation of the process is 7, the desired confidence level is 99.86 percent (i.e., z = 3), the average of the sample means is 24, and number of observations for each sample is 10. Which of the following is your UCL?

2. Consider task A where (Pessimistic time) b = 10, (Most likely time) m = 8, and (Optimistic time) a = 7. What is the expected duration of this task?

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