It is thought that a new process for producing a certain chemical may be cheaper than the currently used process. Each process was run 6 times, and the cost of producing 100 L of the chemical was determined each time. The results, in dollars, were as follows:
New Process: 51 52 55 53 54 53
Old Process: 50 54 59 56 50 58
Can you conclude that the mean cost of the new method is less than that of the old method?
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- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill