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- What is the set of null and alternative hypotheses if we want to determine whether the thickness of papers produced at these two plants is the same?
**(2 points)** - Using a level of significance of 0.05, what is the rejection rule for this test using the critical value approach?
**(2 points)** - Calculate the t statistic
**(2 points)** - Based on the above, what is the conclusion of this statistical test?
**(2 points)**