Question: Q1. Use the data in the table below to calculate the average yield rate for each of the process steps. Roasting Broyage Refining Conching Molding

Q1. Use the data in the table below to calculate the average yield rate for each of the process steps.
Roasting Broyage Refining Conching Molding
Avg. Yield 0.979654 0.988479 0.984189 0.957749 0.998046
Q2. Calculate the average yield rate and the estimated standard
deviation of the yield rate for the overall process.
Average Yield Rate 0.981624
Estimated Standard Deviation 0.014523
for p-chart, n = 250

How do i figure out the UCL and LCL for the p-chart/ what is the equation to use in excel to figure this out?

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