A manufacturer of cellular phones has decided that an assembly line is operating satisfactorily if less than 0.0 5% of the phones produced per day are defective. To check the quality of a dayʹs production, the company decides to randomly sample 10 phones from a dayʹs production to test for defects. Define the population of interest to the manufacturer.
A) all the phones produced during the day in question
B) the 10 phones sampled and tested
C) the 10 responses: defective or not defective
D) the 0.05% of the phones that are defective
Answer: A
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