=+indicate harder metals). Pulse Current: 100 100 100 120 120 120 140 140 140 Hardness: 326 296

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=+indicate harder metals).

Pulse Current: 100 100 100 120 120 120 140 140 140 Hardness: 326 296 312 245 273 276 299 296 282 Use  5 .05 to conduct the test for whether there are any differences in the true average weld hardness attributable to the different pulse currents.

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Applied Statistics For Engineers And Scientists

ISBN: 9781133111368

3rd Edition

Authors: Jay L. Devore, Nicholas R. Farnum, Jimmy A. Doi

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