Question: the following data ( m = 1 6 ) hakd been obtained to established 'plus or minus 3 sigma' control limits with the sample size,

the following data

(

= 16)

hakd been obtained to established 'plus or minus

3

sigma' control limits with the sample size, n

,

eaqual to

4 .

Determine trial control limits n

,

equal to

4 .

Determine trial control limits of x and R chat for the process. if an points are out of control, assume as assignable cause is found for the variation.

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