(Solved) : Two Different Types Of Tips Can Be Used In A . . .

Two different types of tips can be used in a Rockwell hardness tester. Eight coupons from test ingots of a nickel based alloy are selected, and each coupon is tested twice, once with each tip. The Rockwell C-scale hardness readings are shown in the following table. Use the sign test with a = 0.05 to determine whether or not the two tips produce equivalent hardnessreadings.

Two different types of tips can be used in a

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