A series of 20 samples of size 4 has been drawn from a project. The measure...

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A series of 20 samples of size 4 has been drawn from a project. The measure...

A series of 20 samples of size 4 has been drawn from a project. The measure of interest has an average of 20.0443, and the average range within the samples is 0.0567. Determine the control chart lower limit for R

33 products were inspected and a total of noncomformities found was 78. Determine the lower limt for a control chart for noncomformities

33 products were inspected and a total of noncomformities found was 78. Determine the lower limt for a control chart for noncomformities if the number of non comformities standard is 2

math Statistics-And-Probability

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Answer 1

Answer #1

A series of 20 samples of size 4 has been drawn from a project. The measure of interest has an average of 20.0443, and the average range within the samples is 0.0567. Determine the control chart lower limit for R

n20 20.0443 Range 0.0567 S Range/4

lower control limit= 3S 0.0567 = 20.0443 - 3 4 - 20.001775

2)

No of non conformities 78 2.36 33 Noofinspections

Lower Control limit - 3Vc 2.36 3/2.36 LCL=-2.2486

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Answer 2

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