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29 Nov 2021
Given information
Use the following information to answer the next five exercises. Two metal alloys are being considered as material for ball bearings. The mean melting point of the two alloys is to be compared. pieces of each metal are being tested. Both populations have normal distributions. The following table is the result. It is believed that Alloy Zeta has a different melting point.
Step-by-step explanation
Step 1.
Since, that is .
At the significance level that there will be enough proof to reject the null hypothesis. The data support that the melting point for alloy is different from the melting point of alloy Zeta.
Reject the null hypothesis.
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