A Drive-In Restaurant Is Running a New Promotion,the "Route 44

A drive-in restaurant is running a new promotion,the "Route 44," named after an interstate that runs through their primary market area.The drink is promoted as 44 ounces of pure carbonated pleasure but the regional manager,being somewhat of a quality expert,wants to make sure that the company's drink process can deliver 44 ounces.He decides statistical quality control is the best way to monitor their process.
For ten consecutive days he purchases five Route 44 drinks from franchise locations on his way to headquarters and turns them over to the testing lab for volume analysis.The data appear in the table,all amounts are in fluid ounces as measured by the testing lab.

-The regional manager is more concerned about the consistency of the process,figuring that if the cups are filled,the amount will be close enough for beverage work.Develop three sigma control limits to monitor the process and determine whether the process is in control.

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An R chart will monitor consistency.Samp...

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