In a packing plant, a machine packs cartons with jars. It is supposed that a new machine will pack faster on the average than the machine curretly used. To test that hypothesis, the times it takes each machine to pack ten cartons are recored. The results are as follows. Test by hypothesis whether there is sufficent evidence that the new machine will perform on average different than the original machine. (MUST ANSWER IN EXCEL FORMAT)

OLD MACHINE NEW MACHINE

42.1 42.7

41.3 43.8

42.4 42.5

43.2 43.1

41.8 44

41 43.6

41.8 43.3

42.8 43.5

42.3 41.7

42.7 44.1