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An ENT physician has daily mean billings of $ 28,372.72. The standard deviation of the billings is $2000. On Tuesday, the physician billed $34,885.21 worth

An ENT physician has daily mean billings of $ 28,372.72. The standard deviation of the billings is $2000. On Tuesday, the physician billed $34,885.21 worth of procedures. Find Tuesday's z score. Was Tuesday a significantly good day

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