A tomato farmer has been using an X-bar and R chart to control the yield per...

A tomato farmer has been using an X-bar and R chart to control the yield per plant on her highly-mechanized farm. The yield is table over time in both variability and location. The X-bar chart has a centerline value of 10.50 pounds and the upper control limit is 14.20 pounds.

Find the value of the lower control limit of the X-bar chart?
Find the value of the upper and lower one-sigma and two-sigma zones of the X-bar chart?
Find the estimate of the value of the standard deviation of the yield of the tomato plants if the sample size is six?
If it is known that the upper specification and lower specification limits of the tomato yield are, respectively, 8.5 and 15.5 pounds. Find all capability indices of the yield? Is the “tomato yield” process capable? Why?

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orchestra answered 1 year ago

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