A Canadian clothing retailer needs to test whether the content of the fabric, as stated on the label, is within acceptable limits. It outsources this work to a testing company that inspects the fabric at the production facility. Suppose that a line of T-shirts claims to be 50% cotton and that tests of batches coming off a production line indicate the percentages of cotton in the following control chart. A consultant warns that the production process has gone out of control and suggests examining what was happening in the production process during the production of sample 13. Comment on the ethics of the consultant’s advice in relation to the ASA Ethical Guidelines in Appendix C.

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60 UCL 50 CL 40 LCL Sample % Cotton