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Unformatted text preview: UCL x z LCL x z--= = = + = -: Grand mean of the samples (std dev of the sample means) = Process standard deviation Sample size Standard normal deviate (2 or 3) x where n n z x-= = = / = =----4 3 R R UCL D LCL D = = __ (1 ) is the avg. fraction defective of the population can be estimated from the of the samples UCL LCL p p p p p p p n p p p p z p z-= = + =-UCL x z LCL x z n n = = = + = -...
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This note was uploaded on 05/14/2010 for the course EBTM 365 taught by Professor Porterfield during the Spring '10 term at Towson.
- Spring '10