The melting points of two alloys employed in formulating solder were investigated by melting 21 samples of each and every material. The sample mean as well as standard deviation for alloy 1 was X1= 420.48 and S1= 2.34. And for alloy 2 they were X2= 425 and S2=32.5
a. Do the sample data support the claim that both alloys have same melting point? Employ a fixed-level test at alpha = .05 and suppose that both populations are normally distributed and have the same standard deviation.
b. Determine the P-Value for this test