Question: 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

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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