Positions of a test machine

Reference no: EM13966266

In order to test the wear on four hyperalloys, a test piece of each alloy was extracted from each of the three positions of a test machine. The reduction of weight in milligrams due to wear was determined on each piece, and the data are given in Table.

At α = 0.05, test the following hypotheses, regarding the positions as blocks:

(a) There is no difference in average wear for each material.

(b) There is no difference in average wear for each position.

(c) Interpret your ?nal result and state any assumptions that were necessary to solve the problem.

Table: Loss in Weights Due to Wear Testing of Four Materials (in mg)
Position
Type of alloy	1	2	3
1	241	270	274
2	195	241	218
3	235	273	230
4	234	236	227

Reference no: EM13966266

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