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Watch Corporation of Switzerland claims that its watches on average will neither gain nor lose time...

Watch Corporation of Switzerland claims that its watches on average will neither gain nor lose time during a week. A sample of 18 watches provided the following gains (+) or losses (−) in seconds per week. Click here for the Excel Data File −0.21 −0.17 −0.17 −0.23 +0.31 −0.28 +0.44 +0.37 −0.19 −0.35 −0.56 −0.44 −0.47 −0.60 −0.04 −0.28 −0.24 +0.03 State the null hypothesis and the alternate hypothesis. State the decision rule for 0.10 significance level. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.) Compute the value of the test statistic. (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.) Is it reasonable to conclude that the mean gain or loss in time for the watches is 0? Use the 0.10 significance level. Estimate the p-value.

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