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The sample data is presented in the following table

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Independent random samples of 45 and 55 soft drinks are drawn from two soft-drink machines. Sample average content and standard deviation were obtained for both samples. The sample data is presented in the following table:

Machine 1 Machine 2
Sample Size 45 - 55
Sample Mean 11.84 oz. 11.91oz.
Sample Standard Deviation 0.046 oz. 0.044 oz.

Do the data present sufficient evidence to indicate that the mean for the machine 1 is smaller than the mean for the machine 2? Use a 0.05 level of significance.

Reference no: EM13944772

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