Question: A simple random sample of 300 items is selected from a large shipment, and testing reveals that 4% of the sampled items are defective. The

A simple random sample of 300 items is selected

from a large shipment, and testing reveals that 4% of the

sampled items are defective. The supplier claims that no

more than 2% of the items in the shipment are defective.

Carry out an appropriate hypothesis test and comment

on the credibility of the suppliers claim.

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