10.49 Alloying is said to reduce the resistance in a standard type of electrical wire. Ten measurements on a standard wire yielded a mean resistance of 0.19 ohm and a standard deviation of 0.03. Ten independent measurements on an alloyed wire yielded a mean resistance of 0.11 ohm and a standard deviation of 0.02. Does alloying seem to reduce the mean resistance in the wire? Test at the 10% level of significance.