statistics

HW-5_11.17.2017.docx

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Homework 5

Due on 11/20/2017

c control chart :

Surface defects have been counted on 25 rectangular steel plates, and the data are shown in Table. Set up a control chart for nonconformities using these data. Does the process producing the plates appear to be in statistical control?

u control chart:

An automobile manufacturer wishes to control the number of nonconformities in a subassembly area producing manual transmissions. The inspection unit is defined as four transmissions, and data from 16 samples (each of size 4) are shown in Table. Set up a control chart for nonconformities per unit.