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How many MP3 players in the shipment would you predict to be damaged if 6 MP3s in the sample had been damaged

User Clifford
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2 Answers

4 votes
Given that there is a little information I would say all is damaged.
User Abeikverdi
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Substitute values into the proportion.

Substitute known values. Let x be the number of defective MP3 players in the population.

6 / 50 = x / 3500

50 x 70 = 3500, so multiply the numerator and denominator of the fraction 6/50 by 70.

(6x70) / (50x70) = x / 3500

420 / 3500 = x / 3500

420 = x

Based on the sample, we can predict that 420 MP3 players in the shipment would be defective.
How many MP3 players in the shipment would you predict to be damaged if 6 MP3s in-example-1
User Sarf
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