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 is the average sample
proportion of defective transactions for all four weeks? .032 .04
.02 .30 None of the other choices are correct
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