The melting points of two alloys used in formulating solder were investigated by melting 12samples of each material. The sample mean and standard deviation for alloy 1 was x1 = 420°F andsf=6°F, and for alloy 2, they were x2= 426°F and s = 5°F. Do the sample data support the claimthat both alloys have melting point with different mean? Use a = 0.05 and assume that bothpopulations are normally distributed and their standard deviations are not equal.%3Dat ofestion1. Determine the degrees of freedom (Round your answer to the nearestinteger).024ONone of the choices are correct020022262. What are the appropriate null and alternative hypotheses?

Name: The melting points of two alloys used in formulating solder were inve
Uploaded: 2024-03-20T07:07:37.000Z
Channel: Bartleby
Description: The melting points of two alloys used in formulating solder were investigated by melting 12samples of each material. The sample mean and standard deviation for alloy 1 was x1 = 420°F andsf=6°F, and for alloy 2, they were x2= 426°F and s = 5°F. Do th