Question: To test whether the mean time to mix a batch of adhesive is thesame formachines produced by four manufacturers, TiteBondMax obtained DATA on the time

To test whether the mean time to mix a batch of adhesive is thesame formachines produced by

four manufacturers, TiteBondMax obtained DATA on the time (minutes) needed to mix the materials.

Test whether the machines have equal mean mixing time at

Manufacturer

A B C D

25 23 25 28

23 21 25 27

21 23 25 28

23 24 21 29

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