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A company claims that a new manufacturing process changes the mean amount of aluminum needed for...

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Statistics

A company claims that a new manufacturing process changes themean amount of aluminum needed for cans and therefore changes theweight. Independent random samples of aluminum cans made by the oldprocess and the new process are taken. The summary statistics aregiven below. Is there evidence at the 5% significance level (or 95%confidence level) to support the claim that the mean weight for allold cans is different than the mean weight for all new cans?Justify fully!

The Old process had a sample of size 25 with a mean of 0.504 andstandard deviation of 0.019. The New process had a sample of size25 with a mean of 0.495 and standard deviation of 0.021.

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