A Quality Analyst wants to construct a control chart for determining whether errors in bank transactions are under contr

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answerhappygod
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A Quality Analyst wants to construct a control chart for determining whether errors in bank transactions are under contr

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A Quality Analyst wants to construct a control chart for
determining whether errors in bank transactions are under control.
She looked at samples of 1000 transactions each week, for four
weeks in a row. A transaction was considered defective, if the
analyst detected any error in the transaction. Week Total
Defectives 1 50 2 27 3 15 4 35 What are the upper and lower control
limits for this control chart, using 3 sigma control limits? .0364
and .2757 .0428 and .0206 None of the other choices are correct
.0487 and .0153 .3495 and .2905
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