Mathematics, 25.03.2020 05:18 estheradame547
Fifty specimens of a new computer chip were tested for speed in a certain application, along with 50 specimens of chips with the old design. The average speed, in MHz, for the new chips was 495.6, and the standard deviation was 19.4. The average speed for the old chips was 481.2, and the standard deviation was 14.3. a) Can you conclude a significant difference in the mean speed between the new and old chips
Answers: 3
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Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?
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Mathematics, 21.06.2019 21:00
Joanie watched 1 out of three of a movie in the morning
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