A foreman wants to use an 
chart to control the average length of the bolts manufactured.He has recently collected the six samples given below. 
Determine the LCL and the UCL for the R chart.
Definitions:
Demand Curve
The demand curve is a graphical representation that displays the relationship between the price of a good or service and the quantity demanded by consumers at varying price levels.
Unitary Elasticity
A situation in which the quantity demanded or supplied of a good changes by the same percentage as the change in price.
Demand Curve
A graphical representation of the relationship between the price of a good or service and the quantity demanded for a given period, typically showing a downward slope.
Elastic Demand
A situation where the demand for a product is sensitive to price changes.
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