9.63 Of a random sample of 220 parcels, 50 parcels have been delivered after the estimated delivery...

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9.63 Of a random sample of 220 parcels, 50 parcels have been delivered after the estimated delivery time. Find the lowest level of significance for testing the null hypothesis that at most 25% of all parcels have been delivered after the estimated delivery time.

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Essential Mathematics And Statistics For Science

ISBN: 9780470694480

2nd Edition

Authors: Graham Currell, Dr. Antony Dowman

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