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The Rollins Sporting Goods Company manufactures baseballs for the pr

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The Rollins Sporting Goods Company manufactures
baseballs for the professional minor and major leagues at
its plants in Costa Rica. According to the rules of major
league baseball, a baseball must weigh between 142 and
149 grams. The company has taken samples of the
production process and determined that the process mean
is 145.06 with a standard deviation of 1.18.How precise
would the process have to be to produce six sigma
quality?The standard deviation of the process would need
to be 0.999.The process is already capable of six sigma
quality.The standard deviation of the process would need
to be 0.583.The standard deviation of the process would
need to be 0.865.
Solution
maximum sigma reqiared for 6 sigma
process=max((145.06-142)/3, 149-145.06)/3)=max(1.02,
1.31)=1.31
sas standard deviation (1.18) is less than max sigma(1.31)
procesws is already following six sigma quality
so option B. The process is already capable of six sigma
quality.

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The Rollins Sporting Goods Company manufactures baseballs for the professional minor and major leagues at its plants in Costa Rica. According to the rules of major league baseball, a baseball must weigh between 142 and 149 grams. The company has taken samples of the production process and determined that the process mean is 145.06 with a standard deviation of 1.18.How precise would the process have to be to produce six sigma quality?The standard deviation of the process would need to be 0.999.The process is already capable of six sigma quality.The standard deviation of the process would need t ...
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